Kashrus Halacha: Recent Episodes
Dovid Cohen
10 Animals [Part 4];
- Dishon (Re'em, rhinoceros, addax, chamois);
- Kudu horn shofar;
- Se'oh (Turbala, shor habor, buffalo, Aurochs, oryx);
- Zamer (giraffe, okapi);
See seforim by Rabbi Cohen at www.kashrushalacha.com
10 Animals [Part 3]:
- Ayal (Red Deer) (elk, moose, reindeer/caribou);
- Tzvi (Gazelle) (deer, grand branched antlers, similarity to goat, gestational period) (antelopes, dukier, generuk, impala);
- Yachmor (Roe Deer) (dainty antlers) (axis deer, muntjac, pudu);
- Ako (Ibex) (hapax legomena, pashut, similarity to sheep, kudu, female sheep).
See seforim by Rabbi Cohen at www.kashrushalacha.com
10 Animals [Part 2]:
- Cow (Shor);
- Sheep (Seh Kesavim) (horns, wool) (Racka, Mouflons, Urials) ;
- Goats (Seh Izim) (shofar).
See seforim by Rabbi Cohen at www.kashrushalacha.com
Seals [Part 2]:
- Yotzeh v'nichnas;
- Home setting;
- Factories;
- Uber Eats;
- Equipment.
See seforim by Rabbi Cohen at www.kashrushalacha.com
10 Animals [Part 1];
- Introduction/Goals;
- Ambiguity;
- Species;
- Horns, Antlers, and Ossicones;
See seforim by Rabbi Cohen at www.kashrushalacha.com
Seals [Part 1]:
- Benefit;
- Seals/Simanim;
- One or two?
- Locks;
- Effective seals;
See seforim by Rabbi Cohen at www.kashrushalacha.com
Sourdough:
- Description;
- Starter purchased from bakery;
- Was there hafrashah;
- Status of starter - issah ha'asuyah lechalek (עיסה העשויה לחלק), נחתום/baker.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Kilayim [Part 2]:
- Keeping a kilayim tree;
- Bracha on blossoming tree;
- Shehechiyanu on Rosh Hashanah;
- Microbial fermentation.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Kilayim:
- Basics;
- Species/Minim;
- Shehechiyanu;
- Grafting vs Crossbreeding.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Jordan:
- Ever Hayarden (עבר הירדן);
- Terumah, Ma'aser, Arlah;
- South;
- East;
- Yom Tov Sheini (Rambam and Ritva, Ever HaYarden, Eilat).
See seforim by Rabbi Cohen at www.kashrushalacha.com
Beheimah Shehorah Bo Chacham / בהמה שהורה בו חכם:
- Sevara vs. Mesorah;
- Bitul;
- Who;
- Applications.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Edible Raw (Bishul Akum):
- Milk;
- Corn;
- Cranberries;
- Maple Syrup;
- Mushrooms;
- Chestnuts;
- Fish (sushi).
See seforim by Rabbi Cohen at www.kashrushalacha.com
Five Grains (Part 3):
- Bracha Acharonah;
- Kol Sheyesh Bo (licorice, shnitzel, fish sticks);
- Bran;
- Vital Wheat Gluten (seitan);
- Wheat Starch (Molino flour);
See seforim by Rabbi Cohen at www.kashrushalacha.com
Five Grains - Part 2):
- Ma'asei Kedairah;
- Bran removed;
- Stuck together (Rambam, Rabbeinu Yonah);
- Pearled barley;
- Farro;
- Granola Bars.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Five Grains [Part 1]:
- Processing;
- Four Parts;
- Oats, barley, wheat, spelt, rye;
- Four berachos - ha'adamah, shehakol, hamotzi, mezonos;
- Wheat germ;
- Ma'asei kedairah.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Food Service Hashgachah:
- The Va’ad – Standards, Oversight;
- Roles – Mashgiach (Ingredients, Bishul Yisroel, Vegetables, Other), Community Rabbi;
- Small Community Hashgachos – Locations, Shabbos, Partial Certification, Finances, Policies.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Kashering Shorts:
- Corelle (absorption, tevillah);
- Milui v'irui on Shabbos;
- Chafing dish food pans;
- Countertops.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Science and Kashrus:
- Animal fat and vegetable oil (glycerin, fatty acids);
- Vape juice, e-cigarettes, and flavors;
- Glucose;
- Medicine;
- Vacuum and pressure.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Small Kitchen Items on Shabbos [Part 1]:
- Labriute Meals (FRH/MRE);
- Soda Stream (Sypholux);
- Metal Ice Cubes.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Beracha on Changed Food - Part 2:
- Tomato paste;
- Peanut butter;
- Chocolate;
- Sugar;
- Soy;
- Orange Juice;
- Recited ha'eitz or ha'adamah.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Beracha on Changed Food - Part 1:
- Terimah;
- Pas Dochen;
- Corn.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Chocolate
See seforim by Rabbi Cohen at www.kashrushalacha.com
Supermarket Shopping After Pesach [Part 2]:
- Safek chametz she'avar alav haPesach;
- Mechiras chametz;
- Inventory turnover rate;
- Days on Hand;
- Groceries and spirits;
- When one may purchase chametz.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Minhag Against Halacha:
- Maharik;
- Pri Chadash.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Shabbos Mode
See seforim by Rabbi Cohen at www.kashrushalacha.com
Grains for Matzah - Part 2:
- Controversy ;
- Common practice;
- Points of contention - fully dry, mechanical drying;
- Avoidance;
- Acceptance - Me'il Tzedakah, Sh'murah from grinding;
- Minhag against halacha.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Kashering
See seforim by Rabbi Cohen at www.kashrushalacha.com
Grains for Matzah [Part 1]:
- Chimutz while attached to the ground;
- Rashba;
- Wheat growth (color, moisture);
- BBCH Stages 89 and 92;
- Harvest;
- Understanding Rashba.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Dried Fruit
See seforim by Rabbi Cohen at www.kashrushalacha.com
Medical Advocates:
- Your turf;
- Kashrus knowledge;
- Placing patients.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Matzah Shemurah
See seforim by Rabbi Cohen at www.kashrushalacha.com
Homeopathic Remedies
See seforim by Rabbi Cohen at www.kashrushalacha.com
Fruit Trees
See seforim by Rabbi Cohen at www.kashrushalacha.com
Amirah L'akum:
- Melacha - machlokes, psik reishah, urn;
- For Jews - wash dishes, adatah d'nafshey, Jew's home, write orders, convection oven, industrial, eruv;
- Shabbos or Yom Tov - Early Shabbos, bein hashmashos, open on Shabbos.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Pineapple [Arlah Shorts - Part 2]:
- Growth;
- Status;
See seforim by Rabbi Cohen at www.kashrushalacha.com
Davar Charif
See seforim by Rabbi Cohen at www.kashrushalacha.com
Arlah Shorts - Part 1:
- Avocado;
- Blueberries (highbush, lowbush/wild, bilberries);
- Pomegranates;
- Toiletries.
See seforim by Rabbi Cohen at www.kashrushalacha.com
High School Q&A 2025:
- Vaping;
- Dairy and DE;
- Drinks;
- Hechsherim.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Enzymes:
What they are; Examples; Animal-based enzymes; Dried out like wood (יבש כעץ); Inedible and se'or; The teshuvos; Davar Hama'amid. See seforim by Rabbi Cohen at www.kashrushalacha.com
Bishul Yisroel Q&A:
Remote lighting; Sephardim; Pilot light; Oleh al shulchan melachim; Non-Shomer Shabbos; Potato chips; Tuna fish; Eggs; Beans; Sushi; Corn.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Warming Food on Shabbos:
- Hot box;
- Hot plate (plata);
- Empty pan;
- Non-Jews;
- Shabbos Chef.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Marijuana and Nicotine:
- Health and safety;
- Cigarettes and cigars;
- Hookah and vaping; Smokeless tobacco; Zyn (nicotine pouches); Marijuana (growing and processing); Hemp and CBD; D8; Pesach. See seforim by Rabbi Cohen at www.kashrushalacha.com
Numbers DO Lie:
- Displaced abomasum;
- Italian pasta;
- Laundry-grade glycerin;
- Copepods in New York water;
- Milk from many cows;
- Volume vs. weight;
- Shiur challah;
- Heat vs. temperature;
- Wine in Canadian whisky;
- Concentrated wine;
See seforim by Rabbi Cohen at www.kashrushalacha.com
Bionaphtha:
- Naphtha and bionaphtha;
- Legal fictions (mass balance transfer, ethylene pipeline);
- Nishtaneh (machlokes, questions, and answers);
- Masriach, min b'mino, known heter, human intervention;
- Nifsal mei'achilah.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Jewish Ownership
See seforim by Rabbi Cohen at www.kashrushalacha.com
Terumah and Ma'aser:
- Which foods;
- Spices / tavlin (vanilla, citrus oils);
- Hafrashah;
- Ownership;
- Kedushah;
- Biur ma'asros;
- Kashering.
See seforim by Rabbi Cohen at www.kashrushalacha.com
In Vitro Fertilization of Cows:
- Procedure;
- Nikav ha'aim (hole in uterus);
- Ovaries;
- Mefulash.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Milk Substitutes
See seforim by Rabbi Cohen at www.kashrushalacha.com
Potato Industry:
- Bishul Yisroel;
- IQF;
- French fries and potato chips;
- Dehydrated potatoes;
- Canned;
- Instant potatoes.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Vertical Farming
See seforim by Rabbi Cohen at www.kashrushalacha.com
Miut Hamatzui:
- Insects;
- Muchzak vs. matzui;
- D'oraisah vs d'rabannan;
- Definition.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Animal Products:
- Yotzeh vs. Pirshah;
- Shellac and Carmine;
- Bee Products (honey, royal jelly, pollen, beeswax, propolis);
- Eggs;
- Yotzeh of a kosher animal;
- Colostrum;
- Lanolin.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Arlah in Vineyards:
- Grape growth;
- Arlah basics;
- Primary questions;
- Safek arlah in chutz la'aretz;
- Atzis she'aino nakuv;
- Neta revai.
See seforim by Rabbi Cohen at www.kashrushalacha.com
International Travel:
See seforim by Rabbi Cohen at www.kashrushalacha.com
Papain:
- Papaya;
- Papain;
- Peel;
- Papaya Revisited;
- Eggplant Plus.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Kashrus Scandals:
- Assumptions;
- Issues - Four Questions;
- Raw meat in store;
- Prepared food in store;
- Food taken home;
- Kashering.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Vegan Restaurants
See seforim by Rabbi Cohen at www.kashrushalacha.com
Kol Kavuah, Kol D'Parish:
כל קבוע, כל דפריש:
- Kavuah d'oraisah;
- Kavuah d'rabbanan;
- Kol d'parish;
- What is considered parish;
- Pesach.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Davar Shebiminyan:
- What qualifies;
- Meat;
- Sefer Torah.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Yavesh B'yavesh:
- Bitul B'rov;
- Min b'mino & Yavesh b'yavesh;
- Pesach;
- B'lios.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Libun Gamur:
- When;
- How;
- Libun gamur vs. libun kal.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Cigtrus and Air Up Water Bottle:
- Vapors;
- Cigtrus;
- Suitability for hashgachah;
- Air up.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Keilim used for safek issur (YD 107:1).
Reichah:
- Large oven vs. small oven;
- Measuring 12 esronim of flour.
Meat and milk cooking side by side.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Yoshon Nowadays:
- History;
- Practical applications.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Surface Propagations [Part 2]:
- Efshar l'sochto (אפשר לסוחטו);
- No ta'am left;
- Lach b'lach;
- ChaNaN.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Surface Propagations [Part 1 - Inherent status]
- Gidulim;
- Yotzeh;
- Nispatmah kol yamehah.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Canned Fruit and Vegetables
See seforim by Rabbi Cohen at www.kashrushalacha.com
Grape Products:
- Hamshachah (smoothies, jam, bishul before hamshachah, raisin juice concentrate);
- Mevushal;
- Grapeseed extract;
- Grapeseed oil;
- Tartaric acid;
- Other grape products;
- Grape juice from concentrate;
- Issur hana'ah;
- Grape flavors.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Chalav Stam Nowadays
See seforim by Rabbi Cohen at www.kashrushalacha.com
Nitzuk Chibur:
See seforim by Rabbi Cohen at www.kashrushalacha.com
Tata'ah Gavar (תתאה גבר):
- Basics;
- Tumbler;
- Heat sealer;
- Shrink tunnel.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Foods that might need bishul Yisroel:
- Not cooked;
- Oleh al shulchan melachim;
- Edible raw.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Chametz After Pesach:
- Basic halachos;
- Which foods;
- Storekeepers;
- Manufacturers;
- Distributors.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Pesach Miscellany 5784:
- Hafrashas challah (chaburah matzah baking, spelt machine matzah);
- Flower food;
- Steamers;
- Biodegradable bags;
- Wheat straw floss picks.
See Rabbi Cohen's seforim at www.kashrushalacha.com
Gluten Free on Pesach
See seforim by Rabbi Cohen at www.kashrushalacha.com
Kashering a Home Kitchen:
- Restrictions;
- Safety;
- Silverware;
- Pots;
- Countertops;
- Sinks;
- Steamers;
- Oven and Warming drawer;
- Stovetop;
- Microwave.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Zeroah Lechayayim Keivah
See seforim by Rabbi Cohen at www.kashrushalacha.com
Matzah:
- Avoid chametz;
- 18 minutes;
- Avoid heat;
- Maximize esek;
- Machine matzah;
- Lishmah;
- How and what;
- Who;
- Devices.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Kitnios:
- Which foods;
- Halachos;
- Derivatives;
- Other minhagim.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Dairy Bread:
- Basics;
- Differences of opinion (kashering, bitul b'shshim);
- Which foods.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Davar Gush:
- Halachos;
- What;
- Mixture;
- Bishul;
- Kashering.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Petrochemicals:
- Introduction (hydrocarbons, nomenclature);
- Primary chemicals (alkanes, alkenes/olefins, aromatics);
- Finished products;
- Renewables.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Kashering of Cheese Equipment:
- Cheese tanks;
- Brining;
- Cheese wires;
- Shrink tunnel.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Kli Rishon and Kli Sheini:
- Basic halacha;
- Exceptions;
- Defanos Mekariros;
- Irui kli rishon;
- Tunnel Pasteurizer.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Maris Ayin:
- Meat and milk - pareve dairy or meat, cultured meat;
- Non-kosher and kosher - eggs, restaurants;
- Other issues - Pesach, Shabbos and Yom Tov, tevillas keilim, hafrashas challah.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Yad Soledes Bo:
- Heat vs. Temperature;
- Shiurim from Poskim - low end, high end.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Kovush:
- Standard kovush - liquid, movement, time, depth;
- Kashering;
- Fast kovush - tzir, charif.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Fruits and Vegetables:
- Wax coating;
- Frozen;
- Pesach;
- Canned;
- Dried;
- Peeled.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Wine and Alcohol:
- Wine (stam yayin, mevushal);
- Secondary halachos (bracha, from concentrate, Pesach seder, music);
- Alcoholic beverages (ingredients, equipment, aging, chametz she'avar alav haPesach).
See seforim by Rabbi Cohen at www.kashrushalacha.com
Bugs are Nosein Ta'am Lifgam:
- People are disgusted by them;
- Cricket powder;
- Beryah.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Devices for creating bishul Yisroel:
- Light bulb and glow plug;
- Boiler;
- Shain device.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Coatings:
- Pot and pans (residue, always aino ben yomo, asui l'hishtamesh b'shefah, ain kavonoso levatel);
- Pre-seasoned cast iron pans;
- Styrofoam cups;
- Fruits and vegetables.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Tunnel Pasteurizer and Cooling Tunnel:
- Introduction;
- The equipment;
- Transfer of Ta'am and Kashering;
- Kli rishon vs. kli sheini;
- Additional factors.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Stam keilim ainum b'nei yoman (סתם כלים אינם בני יומן):
- Basic halacha;
- Kashering;
- Pesach;
- Factories.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Aino Ben Yomo:
- General Halacha;
- Calculations;
- Not effective b'dieved;
- Rely on it l'chatchilah (hag'alah, 12 months).
See seforim by Rabbi Cohen at www.kashrushalacha.com
Israeli Produce:
- Borders;
- Arlah;
- Terumah and ma'aser;
- Shemittah;
- Hashgachah.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Not lishvach and not lifgam (לא לשבח ולא לפגם):
- Bee legs;
- No ta'am at all (אין בו טעם כלל);
- Applications.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Refrigerators and ovens:
- Opening the door on Shabbos and Yom Tov
See seforim by Rabbi Cohen at www.kashrushalacha.com
Kashrus Rulings of Rav Feivel Cohen (first yahrtzeit):
- Copepods in New York City Water (visible but not recognizable, spawned in the water system);
- Mechiras chametz;
- Chametz medicine for a choleh;
- Vinegar of unknown Pesach status;
- Spray dryer kashering;
- Kashering plastic;
- Keurig machine tevillah;
- Stam yayin for a mumar
See seforim by Rabbi Cohen at www.kashrushalacha.com
Introduction to Basar B'chalav:
- Separating (waiting, hard cheese, dairy bread);
- Common scenarios;
- Concepts (ta'am k'ikar, kli rishon, zei'ah, ain habaluah yotzeh, nat bar nat, charif);
- B'dieved concepts (bitul b'shishim, aino ben yomo);
- Benefit and Cooking.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Flavors:
- Components (active vs. inactive, non-certified);
- Types (natural vs. artificial, liquid vs. powder);
- Ingredients.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Higdil Ha'Issur Midaso (הגדיל האיסור מדתו):
- Nutramigen (whose taste, kashering);
- Carmine Manufacturer (b'lios, inedible).
See seforim by Rabbi Cohen at www.kashrushalacha.com
Nosein Ta'am Lifgam:
- Rashba and Ran;
- Details and examples.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Milk and Meat:
- Foods (dairy bread, imitation items);
- Food preparation (separations, oil and spices, double oven, microwave, stovetop);
- Kashering back and forth;
- Waiting 6 hours (meat pot, hard cheese);
- Non-food use (hana'ah);
- Pet food.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Bitul of Keilim:
- Non-Automatic Heter;
- Kashering;
- Expense, other factors;
- Aino ben yomo;
- Pesach;
- Tevillas Keilim.
See seforim by Rabbi Cohen at www.kashrushalacha.com
High School Kosher Q&A (4) - Shabbos, Brachos:
-
Shabbos:
-
Taking cholent on Friday night;
- Instant coffee, tea, and hot cocoa;
-
Opening refrigerator and oven;
-
Brachos:
-
Wraps;
- Cholent;
- Granola bars.
See seforim by Rabbi Cohen at www.kashrushalacha.com
"D" and "DE"
Dairy and Dairy Equipment
See seforim by Rabbi Cohen at www.kashrushalacha.com
High School Kosher Q&A - Part 3 - Chumros:
- Yoshon - why, trusting people;
- Chalav Yisroel - why, powdered milk;
- Pas yisroel;
- Bird breeds.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Pas Yisroel:
- Defining pas;
- Pas haba'ah b'kisnin;
- Tureisah d'nahamah / toar lechem;
- Fried or cooked;
- Pas Yisroel vs. bishul Yisroel;
- Pas paltar;
- Bishul Yisroel leniencies;
- Jewish participation.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Chazusah (חזותא):
- Sources;
- Opinions;
- Other details.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Hotel Kashering:
- Safety;
- Flat top (griddle);
- Tilt skillet (brazier);
- Steam kettle;
- Vegetable steamer;
- Hot box.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Methods of Creating Bishul Yisroel:
- Light the flame;
- Aish M'aish (basics, halachic and practical considerations);
- Hashlachas kisem;
- Residual Heat;
- Convection oven.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Davar Sheyesh Lo Matirim [Part 2]:
- Yoshon flour milling;
- Yoshon barley pearling;
- The concern;
- Salek es mino;
- Trei Mashehu;
- Safek issur mashehu;
- Limits to mashehu;
- Meat without hashgachah.
See seforim by Rabbi Cohen at www.kashrushalacha.com
High School Q&A [Part 2];
- Hot dogs in stadium;
- Vaping;
- Toothpaste and mouthwash;
- Beverages;
- Shellac
See seforim by Rabbi Cohen at www.kashrushalacha.com
High School Q&A [Part 1]:
- Meat and milk;
- Saltshaker;
- D and DE;
- Hard cheese;
- Pareve in a meat pot;
- Dairy spoon in meat drawer;
- Shechitos;
- Beverages
See seforim by Rabbi Cohen at www.kashrushalacha.com
Gevinas Yisroel:
- Soft cheese;
- Creating gevinas Yisroel;
- Kashering.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Davar Sheyesh Lo Matirim [Part 1]:
דבר שיש לו מתירין:
- Basics;
- Min b'mino;
- Chodosh malt (chametz, bitul, sfek sfekah).
See seforim by Rabbi Cohen at www.kashrushalacha.com
Comparing Fish Fillets:
- Background;
- Fish fillets;
- Skin tags.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Greenhouse Produce:
- Methods;
- Insects;
- Bracha;
- Marror.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Disposable Pans;
Electrical Devices;
Tevillas Keilim.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Retorts:
- Technology;
- Batch retorts;
- Continuous Retors;
- FMC Cooker;
- Hydrostatic Cooker (operations, temperatures, kashering);
- Bishul Yisroel.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Chatichah Hariuyah Lehiskabed (חתיכה הראויה להתכבד):
- Basic halachos;
- Definition;
- Raw meat;
- Blends (part is part is not, only together).
See seforim by Rabbi Cohen at www.kashrushalacha.com
Beverages:
- Water;
- Fruit juice;
- Grape juice and wine;
- Soda;
- Energy drinks;
- Alcoholic beverages.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Beryah:
- Malkos;
- Four criteria (living, אסור מתחילת ברייתו, אם יחלק אין שמו עליו, complete);
- Other details;
- Berachos.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Fish:
- Inherent status;
- Processed fish (raw fish, cooking equipment);
- Bishul Yisroel (salting, smoking, tuna, sushi);
- Fish and meat.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Asui Lehishtamesh B'shefah (עשוי להשתמש בשפע):
- Rashba;
- Logic;
- First source;
- Pegam and Aino ben yomo;
- Second source;
- Halacha;
- Questions.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Bitul Issur L'chatchilah
- Which foods - heter, rennet, maris ayin, safek, ingredient;
- Non-food issues - puree, pegimah, remove issur, aino ben yomo;
- Which people - manufacturer, hashgachah, choice, machmir;
- Ain kavonoso levatel - classic, k'derech hamichabdim, shefah, airborne.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Black Ripe Olives;
Zyn pouches;
Flour;
Molino flour.
See Rabbi Cohen's seforim at www.kashrushalacha.com
Dietary Needs at the Seder:
- Shiurim;
- Four Cups / Daled Kosos;
- Matzah;
- Marror;
- Charoses;
- Karpas;
- Shulchan Oreich.
See Rabbi Cohen's seforim at www.kashrushalacha.com
Chametz:
- Flour;
- Oats;
- Mixed-in;
- Non-chametz;
- Barley;
- Beer and whisky;
- Alcohol and vinegar;
- Starch and glucose.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Olives:
- Color;
- Storage;
- Saltwater brine curing (green olives, Kalamata olives);
- Caustic soda (lye) processing (black oxidized ripe olives).
See seforim by Rabbi Cohen at www.kashrushalacha.com
Permitted Insects:
- Grasshoppers;
- Never moved;
- Anisakis;
- Copepods;
- Dried;
- Size.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Requirement to check produce:
- Miut hamatzui;
- Defining matzui (surprise, portions);
- Muchzak b'tolaim;
- Can't check, already cooked;
- Smoothies and broccoli kugel.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Bone Products:
- Gelatin;
- Glucosamine;
- Calcium;
- L-cysteine;
- In a mixture;
- Bone char;
- Other (bee legs, tevillas keilim, b'lios, chicken bones).
See seforim by Rabbi Cohen at www.kashrushalacha.com
Kashrus Rulings from Rav Belsky;
- Irreligious Jews and pas Yisroel;
- Miut hamatzui;
- Tevillas keilim for certified restaurants;
- Shemittah positions;
- Raisin juice;
- Maintaining tevel status;
- Checking for tzomas hagidin;
- Hindquarter nikkur;
- Farberware pots;
- Milk from hundreds of cows;
- Emulsifier as a ma’amid.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Milsah d'avidah lit'amah (מילתא דעבידא לטעמא):
- Basic halachos;
- D'oraisah or d'rabannan;
- Melach habaluah m'dam (מלח הבלוע מדם);
- Flavors;
- Kitnios.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Chalav Stam:
- Pri Chadash and Chasam Sofer;
- Iggeros Moshe;
- Which countries;
- Kashering (DE, libun, kovush, gevinas akum, cheress);
- Goat milk and farm stands.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Efshar L'hasiro (אפשר להסירו):
- D'oraisah or d'rabannan?
- Fat and fat;
- Orange juice;
- Rice for Sephardim for Pesach;
- Hopelessly lost.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Creating Bishul Yisroel [Part 1-Timing]:
- Lighting the fire;
- Sephardim (part 1);
- End of cooking;
- Applications (rice, parbaked bread, canned potatoes, potato dices, hash browns);
- Sephardim (part 2);
- Certification.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Citrus Oils:
- Production (peels, purification, folds, nomenclature);
- Eretz Yisroel;
- Additives;
- Processes (rectification, LAR);
- Ambiguous wording.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Salek es mino (סלק את מינו);
Safek chisaron chochmah.
See seforim by Rabbi Cohen at www.kashrushalacha.com
מין במינו - בתא שמא או בתר טעמא;
Bourbon from a Jewish owned company:
- Chametz after Pesach (חמץ שעבר עליו הפסח);
- Name/title or taste (בתר שמא או בתר טעמא);
- Bourbon;
- Distilled Alcohol (Minchas Boruch).
See seforim by Rabbi Cohen at www.kashrushalacha.com
Poultry:
- Birds vs. animals;
- Teraifos (injections, damaged flesh, Meckel's Diverticulum, tzomas hagidin);
- Foie Gras;
- Packaged chicken shailos (blood, tzomas hagidim, broken bones).
See seforim by Rabbi Cohen at www.kashrushalacha.com
Heat Exchangers:
- Principle;
- Types (plate, tubular, scraped surface);
- Kashering;
- Pasteurization (holding tubes, divert lines, mevushal);
- Regeneration.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Bitul Calculation:
- Volume vs. weight;
- Specific gravity;
- How much issur is there;
- Estimations;
- Modern pot types (stainless, aluminum, clad, disc clad, anodized aluminum);
- Actual calculations (overview).
See seforim by Rabbi Cohen at www.kashrushalacha.com
Glatt and Beis Yosef:
- Introduction;
- Procedure (access diaphram/tarpash, bedikas pnim, bedikas chutz);
- Methods of checking (הכנסת יד הבודק, hagbah, miuch and mishmush, klipah);
- Glatt;
- Chalak - Beis Yosef;
- Sephardim;
- Dakos.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Milk and Cheese:
- Dairy industry overview;
- Fat (cream, butter, ice cream);
- Protein (acid vs. rennet, casein and cheese, whey, cottage cheese, yogurt, sour cream);
- Sugar - Lactose (mei chalav);
- Water and minor components;
- Creating chalav Yisroel;
- Yotzeh v'nichnas;
- Video cameras;
- Creating gevinas Yisroel.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Meat Basics:
- Shechitah;
- Teraifos;
- Nikkur;
- Melichah;
- Simanim.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Oil:
- Source;
- Fish;
- Kitnios;
- Processing (deodorizing, bulk transport, conversion, tracing lines);
- Lubricants;
- Essential Oils;
- Citrus Oil;
See seforim by Rabbi Cohen at www.kashrushalacha.com
Tasting Safek Issur:
- Tasting Issur;
- Tasting safek issur;
- Boiler Condensate;
- Mouthwash;
- Toothpaste;
- e-Cigarette Juice.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Tasting;
- Te'imas Kefeilah (טעימת קפילא);
- Te'imas Yisroel (טעימת ישראל);
- Pesach Production;
- What is "tasting";
- Other (fast day, 6 hours);
See seforim by Rabbi Cohen at www.kashrushalacha.com
Sukkah Building:
- Location;
- Walls;
- S'chach.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Dairy Bread:
- Basic halacha;
- Kashering;
- Bitul;
- Which foods;
- K'ein turah;
- Timing.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Yoshon:
- Basics;
- Five grains;
- Equipment;
- Guide to Chodosh;
- 80/20 rule.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Mechalyah Leh Lishvach [Part 2]:
- Mechalyah for foods;
- Knife of unknown status (safek, factory, food service);
- Wine and whisky;
- Common examples of knife halachos.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Mechalyah Leh Lishvach [Part 1]:
- How it operates;
- Halacha;
- Beis Meir;
- Vinegar.
See seforim by Rabbi Cohen at www.kashrushalacha.com
End of Shemittah:
- Shemittas kesafim;
- Pruzbul;
- Arba minim (aravah, hadassim, esrog, lulav);
- Post-shemittah;
See seforim by Rabbi Cohen at www.kashrushalacha.com
Medicine:
- Tablets
- Liquids
- Chewables
- Gelcaps
- Vitamins
See seforim by Rabbi Cohen at www.kashrushalacha.com
Duchkah D'sakinah [Part 2]:
- Fish in a non-kosher fish store;
- Cut fruit and vegetables;
- Grinding and chewing;
- Plate underneath;
- Scraping;
- Knife sharpening;
- Multiple steps;
- Six hours.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Duchkah D'sakinah [Part 1] :
- Levels of absorption;
- Hadachah, gerairah, shifshuf, klipah;
- Knives nowadays;
- Cleaning methods.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Hafrashas Challah:
- Belilah Raccah;
- Shiur challah;
- Commercial hafrashas challah methods;
- Dough balls;
- Tevel (year, time-related, remote hafrashah, act of hafrashah);
- Sell to non-Jew.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Microwave and Dishwasher Kashering:
- Cracks and crevices;
- Microwave oven;
- Home dishwasher (how it works, kashering);
- Double drawer dishwasher;
- Commercial dishwasher (box, conveyor).
See seforim by Rabbi Cohen at www.kashrushalacha.com
Coffee on the road:
- Starbucks;
- Rest stops;
- Convenience stores;
- Hotel room;
- Office.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Chalav Yisroel Creation
- Hashgachah;
- Yotzeh v'nichnas;
- Checking the container;
- DA cows;
- Kashering;
- Preventing kovush.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Chalav Yisroel & Gevinas Yisroel:
- Changes in chalav stam;
- DA Cows (displaced abomasum);
- Chalav stam infant formula;
- Mashgiach temidis for chalav Yisroel;
- Jewish ownership of rennet for gevinas Yisroel;
- Chalav stam kosher hard cheese;
- Butter from chalav stam;
See seforim by Rabbi Cohen at www.kashrushalacha.com
Which cooking methods require bishul Yisroel?
- Salting;
- Pickling;
- Smoking (cold smoke, hot smoke);
- Steaming;
- Microwaving;
- Induction cooktop;
See seforim by Rabbi Cohen at www.kashrushalacha.com
Davar Charif;
- Gemaros;
- Six halachos;
- What is charif?
- Principles and Examples;
- Vegetable name translations;
See seforim by Rabbi Cohen at www.kashrushalacha.com
Vinegar - Part 2 of 2.
- Vapor scrubber;
- Pasteurization;
- Halachic issues (brief);
- Kovush - time, b'dieved, moving around;
- Stam yayin - milui v'irui, machniso l'kiyum, mevushal;
- Chametz;
- Kashering;
See seforim by Rabbi Cohen at www.kashrushalacha.com
Vinegar - Part 1 of 2;
- Acetobacter;
- Vinegar types;
- Ingredients;
- Production;
- Generator;
- Acetator;
- Concentration.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Commercial Dishwashers.
Final installment of the 5 part series on washing dishes.
- Operations;
- Box dishwasher;
- Conveyor dishwasher;
- Meat and dairy in same dishwasher;
- Kashering;
- Three compartment sink;
- Dish sanitizer.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Double Drawer Dishwasher;
Part 4 of 5 on washing dishes;
- Nat bar nat;
- Dairy and meat simultaneously;
- Hot or cold.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Residential Dishwashers;
Part 3 of 5 on washing dishes;
- Operations;
- Considerations;
- Technological changes;
- Pre-rinse cycle;
- Wash cycle;
- Sanitize rinse cycle;
- Kashering.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Washing Meat and Dairy Dishes in One Sink
Part 2 of a 5 part series on washing dishes
- Nat bar nat;
- Irui kli rishon;
- Proper practice;
- Non-kosher;
- Pesach.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Washing Dishes [Part 1 of 4]
- Principles / General Halachos;
- Nat bar nat (primary details, extensions);
- Pegimah.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Kedushas Shevi’is:
- Which items have kedushas shevi’is (food, animal food, flowers, yevul nochri)
- Eating without wasting (gram hefsed, shemittah bins, children)
- Eating – practical examples (lemon, apple, wine, animal food)
- Keep produce in Eretz Yisroel
- Sechorah
- Biur (how, after biur)
See seforim by Rabbi Cohen at www.kashrushalacha.com
Is It Chametz?
- Foods
- Non-Foods
- Medicines
- Pets
See Rabbi Cohen's seforim at www.kashrushalacha.com
Safek Issur Mashehu;
Rice Cereal for infants on Pesach;
- איסור משהו;
- נתקבעו;
- יבש ביבש;
- סכין;
- ירדו גשמים
See Rabbi Cohen's seforim at www.kashrushalacha.com
Meat and Fish
- Danger
- Separation
- Bitul (bitul b'shishim, bitul issur l'chatchilah)
- Worcestershire sauce
- Fish oil
- Marshmallows
- Fish fork
- B'lios
See seforim by Rabbi Cohen at www.kashrushalacha.com
Tevillas Keilim - Part 2 (business users)
- Containers of Packaged Food;
- Restaurants;
- Hotels;
- Nursing Homes;
- Retinning;
- Large industrial equipment;
See seforim by Rabbi Cohen at www.kashrushalacha.com
Tevillas Keilim - Part 1 (home users)
- China;
- Teflon;
- Porcelain enamel
- Disposable pans
- Electrical devices (עשוי לשמש עם הקרקע, impossible to toveil);
- Containers of packaged food
See seforim by Rabbi Cohen at www.kashrushalacha.com
Nat Bar Nat
- Eight Basic Halachos (heter, charif, l'chatchilah, 3 transfers, cooking, clean utensil, aino ben yomo, residue);
- Certified items;
- "DE" foods;
- Keurig
- Steam table.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Kashering From The Food Side
- Basic Halacha;
- Blech;
- Frying pan;
- Glass stovetop;
- Kedairah blech;
- Reactor.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Ta'am Travelling and Transferring
- Cham miktzaso cham kulo (source, contradiction, Magen Avraham, Shach, Maharam Matz);
- Kovush;
- Distance;
- Connections;
- Speed.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Non-Kosher Materials - Part 2
- Agricultural Products;
- Ma'achalei Akum - bishul akum, pas akum, stam yayin;
- Grains;
- Chodosh / yoshon;
- Hafrashas challah;
- Time and Place;
- Pesach - chametz, chametz she'avar alav haPesach, Jewish distributors;
- Arlah;
- Terumah and ma'aser;
- Shemittah;
- Keilim (equipment) - fatty acids, vegetable oil, dryers, pasteurization, steam.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Non-Kosher Materials - Part 1
- Scope;
- Meat and Poultry;
- Oils, fats, glycerin, fatty acids, gelatin;
- Fish (scales, red roe, salmon, isinglass);
- Insects;
- Dairy products (chalav akum, gevinas akum, casein, lactose).
See seforim by Rabbi Cohen at www.kashrushalacha.com
אין הבלוע יוצא מחתיכה לחתיכה בלא רוטב
- Food to food;
- Utensil to utensil;
- Details;
- Industrial examples;
- Stovetop grapes;
- Induction stovetop.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Sefichin
- Is main criteria kedushas shevi'is or concern of planting?
- Items without kedushas shevi'is (linen, flowers);
- Animal food;
- Non-Jew's field;
- Harvested in 8th year;
- Planted in 6th year;
- שדה ניר.
Buy the book at www.kashrushalacha.com
Boilers
- Relevance;
- Firetube and Watertube boilers;
- Startup and draining a boiler;
- Boiler setup;
- Pegimah Sampling;
- Bishul Yisroel (creation, oversight).
See seforim by Rabbi Cohen at www.kashrushalacha.com
Medicine and Toiletries for Pesach
- Shulchan Aruch OC 442;
- Inedible vs. sheloh k'derech;
- עירב בו דבר מר vs. נסרח גוף האיסור (Chavos Da'as, Pesach examples);
- Ach'shvei (אחשביה);
- Chametz ingredients (starch, ethanol, xanthan gum, sorbitol, flavors);
- Inedible (definition, ach'shvei, toothpaste, mouthwash, denatured alcohol, vitamins);
- Is it really chametz?
See Rabbi Cohen's seforim at www.kashrushalacha.com
Eating during shemittah
- Sefichin;
- Kedushas shevi'is - timing, foods, flowers;
- Northern Aravah;
- Greenhouse produce (מצע מנותק);
- Non-Jewish fields (יבול נכרי);
- Heter mechirah;
- Otzar Beis Din;
- זריעה מוקדמת;
- Kedushas Shevi'is - proper uses, with demonstration.
Buy the book at www.kashrushalacha.com
Zei'ah
- Basic halachos;
- Stovetop;
- Oven;
- Microwave oven;
- Hookah;
- e-Cigarettes;
- Zei'ah b'almah;
- Media.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Foods That Require Bishul Yisroel
- Pas vs. Tavshil;
- Edible raw (נאכל חי) (with other foods, passably edible, prefer it cooked);
- Oleh al shulchan melachim (עולה על שולחן מלכים) (definition, if prepared differently, egg)
- Beets, cake, cereal, corn, crackers, doughnuts, eggs, onions, pizza, potato chips, rice, sardines, tuna fish, and wraps.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Freeze Dryers (אש שורף דבר מועט)
- Stovetop;
- Oven;
- Freeze Dryer operations;
- Hashgachah;
- Segregation;
- Other issues.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Seven Important Shemittah Disagreements – Part 2 of 2
- Three kulos of Chazon Ish (ukmei peiri/אוקמי פירי, zeri'ah mukdemes/זריעה מוקדמת, s'dei nir/שדה ניר) (Otzar Beis Din)
- Heter Mechirah (sha'as hadchak, gemiras da'as, lo sechanem)
See seforim by Rabbi Cohen at www.kashrushalacha.com
Seven Important Shemittah Disagreements – Part 1 of 2
- Borders (names, southern border)
- Greenhouse produce (עציץ שאינו נקוב/atzis she’aino nakuv, זורע בבית/zore’ah babayis)
- Meshumar and Ne’evad (משומר ונעבד)
- Yevul Nochri (יבול נכרי)
- Kedushas Shevi’is after Biur
See seforim by Rabbi Cohen at www.kashrushalacha.com
Steam Systems (טיפת חלב) [Part 2]
- Pegimah
- Davar hapogem
- Chavos Da'as
- Nifsal mei'achilah (inedible) vs. sheloh k'derech achilah
- Nisrach (spoiled) vs. irev bo davar mar (bitter component added)
- Pesach proofs
- Reversibility
- Nosein ta'am lifgam
- Three approaches
- Pegimah candidates - pine oil, propylene glycol, neutralizing amines, bitrex, heating oil, caustic
See seforim by Rabbi Cohen at www.kashrushalacha.com
Shemittah is starting:
- Preparations;
- Manufacturing companies;
- Vegetables - timing, sefichin;
- Options;
- Fruits - kedushas shevi'is, timing;
Buy the book at www.kashrushalacha.com
Steam Systems (טיפת חלב) [Part 1]
- Introduction - cooking with steam, jacketed kettles, questions;
- Halacha;
- Observable phenomena;
- 10% rule;
- Preventing cross-contamination (7 ways);
See seforim by Rabbi Cohen at www.kashrushalacha.com
Dairy Industry Overview
- Milk;
- Fat - cream, butter, buttermilk, ice cream;
- Protein - acid vs. rennet, casein and cheese, hard cheese vs. soft cheese, whey, cottage cheese, yogurt, sour cream;
- Sugar / Lactose - mei chalav, meimei chalav, uses
- Water and minor components
See seforim by Rabbi Cohen at www.kashrushalacha.com
Chatichah Na’aseis Neveilah (חנ"נ) [Part 2]
Exceptions
- Heter;
- Chametz;
- Issur d’rabannan;
- Chalav stam;
- Not batel b’shishim;
- Keilim;
- Sofo l’hishpashet
- Cold.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Chatichah Na'aseis Neveilah (חנ"נ) [Part 1]
Basic Halacha
- Basar b'chalav;
- Sha'ar issurim;
- Hefsed merubah (examples);
- Lach and yavesh (לח ביבש, לח בלח, יבש ביבש, powdered stabilizer blend);
- Safek issur (five opinions);
- Steam systems;
- Yedias Hata'aroves.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Evaporators / Concentrators
- Operations - overview, effects, condensate;
- Hashgachah - flavor essence, cow water;
- Kashering - considerations, options.
See seforim by Rabbi Cohen at www.kashrushalacha.com
Zeh V'zeh Gorem [Part 2]
- Simultaneous or Consecutive? (sherry casks, blenders)
- Emulsifiers (definition, status as ma'amid, zeh v'zeh gorem)
See seforim by Rabbi Cohen at www.kashrushalacha.com
Zeh V'zeh Gorem - Part 1
- Principle
- Flavors
- Different Contributions
- Yesh bazeh k'dei lechamietz (יש בזה כדי לחמץ)
- Pesach
See seforim by Rabbi Cohen at www.kashrushalacha.com
Hafrashas Challah in Commercial Establishments
- Four methods
- Dough-ball method (shiyarehah nikarim, trust)
- Tevel dough and matzah (proper year, lo ba'ah l'olam, other grains, mukaf, shelichus, act of hafrashah)
- Q&A
Buy Rabbi Cohen's book on this topic at www.kashrushalacha.com
Glucose
- Sugars (monosaccharides, disaccharides, polysaccharides)
- Glucose sources (juice, lactose, starch, countries of origin)
- Glucose uses (fermentations, alcohol, vinegar, ethyl compounds, sugar alcohols)
- Nishtaneh
See seforim by Rabbi Cohen at www.kashrushalacha.com
Davar Hama’amid:
-
General Halachos – Exceptions [1] basar b’chalav (cheese), [2] inherently forbidden (yeast), [3] zeh v’zeh gorem, [4] remains in (immobilized enzyme, glucose isomerase, catalysts), [5] meaningful effect
-
Examples – cottage cheese, vinegar, stabilizer, amylases
-
Other details – kashering afterwards, chametz after Pesach, bishul akum and kitnios, whey, three ha’amados, tevillas keilim
See seforim by Rabbi Cohen at www.kashrushalacha.com
Is it acceptable for kosher slaughterhouses to use the same knives for kosher and non-kosher, such as neveilos and teraifos?
How can that be reconciled with Shulchan Aruch YD 10:3 and 64:16?
See the video at http://kshr.us/ButcherKnives
What does it take to create kosher artificial meat (a.k.a. cultured meat, cellular meat, clean meat)?
What are the halachic issues to consider?
- Basar min hachai
- Shechitah
- Fleishig or pareve?
- Extension or ma'amid?
- Serum
See the video at http://kshr.us/CulturedMeat
Insect Issues
- Copepods in New York City Water (Kensico reservoir, visibility, matzui)
- Worms in fish
- Leaf miners
- Mechanically dried herbs
- Shellac
- Q&A
Buy the book at www.kashrushalacha.com
Hidden issues in a kosher slaughterhouse:
- Dewlap tag
- Electric prod
- Electrical stimulation
- Rodding the weasand
Watch the video at http://kshr.us/Hidden
American Meat Takanah of the Agudas HaRabbonim
- The takanah
- Must we follow it?
- Spirit of the takanah
Watch the video at http://kshr.us/Takanah
Pesach issues at a kosher packing house:
- Netting
- Ink
- Casings
Watch the video at http://kshr.us/PesachMeat
Does a shrink tunnel used for non-kosher meat have to be kashered before use for kosher meat in Cryovac bags?
- Hot tunnel
- Hot bath
- Layers
- Irui kli rishon, tata'ah gavar, hevel hakedairah
Watch the video at http://kshr.us/ShrinkTunnel
Is one obligated to give Zeroah, Lechayim, and Keivah (זרוע לחיים וקיבה) to a Kohen in the United States?
Kurkuvan - assorted halachos
See the video at http://kshr.us/MatnosKehunah
Can Foie Gras be certified as kosher?
Four issues to consider:
- Species
- Tzaar Baalei Chaim
- Nekuvas Haveshet
- Kashering
See the video at http://kshr.us/FoieGras
https://youtu.be/hzzi6yrIFgA
April 9
http://kshr.us/FoieGras
- Medicine
- Soft matzah
- Bake your own matzah
- CBD / marijuana
- Antacids
- Kashering with a steamer
- Toothpaste, mouthwash, & lipstick
Liver
- Kashering [7 steps]
- How long to broil
- Three days
- Equipment
- Raw livers [kovush]
- Raw livers [retail sale]
Watch the video of this shiur at http://kshr.us/Liver
If a chicken has a broken bone or looks like there is blood in it, does that mean it is not kosher?
- נצרר הדם
- Redlegs
- Drumsticks with red/bloody spot on them
- צומת הגידין
- Tendon juncture
- Broken chicken wing, drumstick, or femur
- בוקא דאטמא דשף מדוכתיה - Femur came out of socket
See the video at http://kshr.us/PackagedChicken
Salting
- Wet salt
- Melichah methods (all sides with dry salt, covered for 60 minutes without reabsorption)
- Meat placement
- Liver
- Internal organs in chicken
- Meat for people on a low sodium diet (broil, chalitah, salt alternates, work in rules for melichah)
See the video at http://kshr.us/Salting
72-Hour Time Limit
- Time limit for melichah
- Rejected exceptions (frozen, covered)
- Extending the 72-hours
- Barley missed the 72-hour deadline
- Soaking meat to extend days for nikkur
- Liver after 3 days
Watch the video at http://kshr.us/72Hour
Why is hadachah rishonah performed? How is it done?
- Three opinions
- Three practical differences between the opinions
Is it okay to use boning hooks on the salting table?
Is it okay to puncture the liner of the hadachah tank with a knife or fork?
See the video of this shiur at http://kshr.us/Hooks
Hot water or steam before melichah
- General halachos
- Steam vacuuming
- Use at a shechitah
- Other examples
See the video at https://kshr.us/HotWater
Water Temperatures
- Five steps of melichah
- Water for bedikas chutz
- Water for hadachah rishonah
See the video at https://kshr.us/WaterTemp
Chutei Dam
- The prohibition against eating blood
- Blood vessels which must be removed during nikkur
- 2 veins and 2 membranes
- Other veins
- Blood found after melichah
Nikkur Cham
- What is the new practice known as nikkur cham?
- What issues does it raise?
- Are veins and blood left behind?
See the video at https://kshr.us/NikkurCham
What nikkur is required for skirt steaks? How do the practices differ between the United States and Eretz Yisroel
- Outside skirt (tarpash/diaphragm)
- Hanging tender
- Inside skirt (refallah)
- Plate meat (shfundrah/pastrami)
Video available at https://kshr.us/SkirtSteak
See our website at www.kashrushalacha.com
Ribs:
- Differences between Eretz Yisroel and United States
- Chutei D'kafli (חוטי דכפלי)
- Intercostal nerves on 11th, 12th, 13th ribs
- Rib eye
- Nodah B'yehudah / Chasam Sofer
- Fat around rib eye, teraifah finger, along bone, 12th vertebrae
Video of this shiur available at https://kshr.us/Ribs
Chailev
- Four forbidden fats
- Derashos
- Chutim
- Kerumim
Video available at https://kshr.us/Chailev
Video includes demonstrations of three parts by Rabbi Amitai Ben Dovid
Introduction to Nikkur
- Four reasons to perform nikkur
- Nikkur achorayim (hindquarters)
- Contemporary nikkur (10 parts)
- 5739 incident
Bonus content - Rav Belsky shows the gid hanasheh
Video available at https://kshr.us/NikkurIntro
Unusual Teraifos
- Lungs
- Digestive Tract
- Meningeal Worm
- Polish Chicken
Video available at http://kshr.us/UnusualTeraifos
Poultry Teraifos
- Checking for teraifos in chicken
- Damaged flesh
- Meckel's Diverticulum
- Checking chicken for tzomas hagidin
Video available at https://kshr.us/PoultryTeraifah
Glatt and Beis Yosef
- Source
- Five methods of checking
- Primary standards
- Glatt
- Beis Yosef/Chalak
- Sephardim
- Non-glatt meat
Video available at https://kshr.us/Glatt
Checking the lungs
- Overview
- Accessing the diaphragm
- Bedikas pnim
- Bedikas chutz
- Lamb and veal
Video available at https://kshr.us/CheckLung
Sirchos of the lungs
-
Structure of the lungs
-
Terminology
-
Sirchos
-
Why we check the lungs
-
Other teraifos
Video available at https://kshr.us/Sirchah
- Post-Shechitah Checks
-
Kisui Hadam
-
Basics
-
Bracha
-
Zebu
Video Available at https://kshr.us/KisuiHadam
Cutting and Shooting after shechitah
-
Cutting the neck
-
Captive bolt to the head
-
Cutting the spinal cord
Video available at https://kshr.us/CutAfter
Shechitah Pen
-
History
-
Shackle and Hoist
-
Upright ASPCA Pen
-
Rotating Weinberg Casting Pen
Video available at https://kshr.us/ShechitahPen
Preparations for Shechitah
-
Bracha
-
Five halachos of shechitah
-
Foreign matter on the neck (shearing wool, cleaning the neck)
-
Finger on the blade (drasah, chaladah)
Video available at https://kshr.us/ShechitahPrep
Cleaning chalif between shechitos
-
Checking the chalif
-
Chalif previously used for teraifah
-
Sterilization of the chalif
Video available at https://kshr.us/CleanChalif
Quality Chalafim
-
Chad v’chalak
-
Chalafim melutashim
-
Modern chalafim
Video available at https://kshr.us/Chalif
- Takanas shnei shochetim
- Shechitah gelt
Video available at https://kshr.us/Integrity
- Yiras Shomayim
- Is shechitah a mitzvah
- Paid to shecht
- Sephardim
- Break time
- Did not daven
Video available at https://kshr.us/Davening
- Jewish (Bene Israel)
- Man
- Knowledge
- Skill
- Yiras Shomayim
Video available at https://kshr.us/Qualifications
Unusual Disqualifications
-
Bob veal
-
Osoh v’es b’no
-
Multi-legged chicken
Video at https://kshr.us/Disqualifications
Surgical Procedures
-
Drawing blood
-
Capon chicken
-
Cannulated cow
-
Ruminal tympany (bloat)
-
Displaced abomasum
Video at https://kshr.us/Surgical
Injections in Poultry:
-
Original issue - neck, skilled operator
-
In Ovo Inoculation - method, hitting the embryo, teraifah before birth, where the needle hits, proposal
Video at https://kshr.us/Injections
- Bitul l’chatchilah on a davar pagum
-
Bloodspots
-
How they form
-
Halachic status
-
Non-fertilized eggs
-
Checking eggs
-
Protein spots
Minhag to Cook Three Eggs
-
Reason for the minhag
-
Egg laid on Yom Tov
-
Water in the egg pot
Kashering the Kitchen for Pesach
- Items which cannot be kashered (cracks, hard to clean, cheress, plastic, glass, libun)
- Preparing for kashering
- Small Utensils
- Pots
- Sink and Counter
- Microwave oven
- Oven and Stovetop
Watch the video here
First time making Pesach
- Schedule
- Cleaning the house
- Shopping
- Kashering
- Switching over
- Erev Pesach
- Seder preparations
- Chametz after Pesach
Ova
-
Beitzas neveilah
-
Formation of eggs
-
Me’urah b’gidin
-
Ova in liquid eggs
-
Fish roe with meat
Peeled eggs, onions, and garlic overnight
-
Gemara
-
Nowadays
-
Limitations (mixtures, shell or root, raw or cooked)
Kosher bird breeds, Part 1
- Basic halachos
- Mesorah transfers
- Spreading, between communities
Scotch Aged in Sherry Casks
-
Introduction and review
-
Depth of b’liah
-
Kashering
Buy the book at www.kashrushalacha.com
- Kulaindri Kunpiti (reason, what is it)
- Grape molasses (dibs/Pekmez)
- Informing the Public about Issurim D’rabannan
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Distillation
-
Introduction
-
Most Poskim
-
Pnei Yehoshuah
-
Achiezer
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Seals
-
Seals and locks
-
Non-Jew’s kosher wine
-
Coravin
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Touching, Pouring, and Nitzuk (Part 1)
-
Introduction
-
Intent
-
Hand
-
Nitzuk
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The Sheep Head and the Skirt
- Teraifah
- Meningeal worm
- Davar shebiminyan
- Chatichah hareuyah lehiskabed
Hamshachah (Part 2)
-
Before Hamshachah
-
Pouring Grapes
-
Rav Schachter
-
Rav Belsky
-
Bishul before Hamshachah
Buy the book at www.kashrushalacha.com
Hamshachah (Part 1)
-
Wine press
-
Defining hamshachah
-
Hamshachah by mistake
Buy the book at www.kashrushalacha.com
Grapeseed Extract
-
Enocianina
-
Grape-color extract
-
Grapeseed oil
-
Kovush
-
Spread from wine
-
Non-Jew pressing
Buy the book at www.kashrushalacha.com
Raisin juice concentrate
-
Introduction
-
Raisin blows
-
Hamshachah
-
Time of bishul
Buy the book at www.kashrushalacha.com
Piquette
-
Temed
-
Piquette
-
Pomace brandy (grappa)
-
Vinegar crisis
Buy the book at www.kashrushalacha.com
Vermouth
-
Gemara
-
Reasons
-
Limitations
-
Poison/Potion
Buy the book at www.kashrushalacha.com
Mevushal (Part 3)
- Pasteurization (four reasons – loss, taste, Rosh, not Chazal’s mevushal wine)
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Mevushal (Part 2) – Temperature
-
Primary machlokes
-
Temperature required
-
Grape juice concentrate
-
Brandy
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Violating Issurim D’rabannan for a Choleh
-General rule
-
Teshuvos HaRema
-
Bitul
-
Bach Remedies
-
Liquid medicines
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Mechallelei Shabbos
-
Mumar
-
Which mechallel Shabbos is a mumar
-
Is the wine assur
-
Ger toshav
Buy the book at www.kashrushalacha.com
Issur hana’ah
-
Ger Toshav
-
Muslims,
-
Catholics
-
Practical applications
Buy the book at www.kashrushalacha.com
Introduction to Shulchan Aruch 123
- Why did Chazal forbid stam yayin
Buy the book at www.kashrushalacha.com
Bitul of Safek Issur (part 2)
-
Shach
-
Safek Issur
-
Other opinions (Toras Hashelamim, Pri Megadim, Rebbi Akiva Eiger)
Buy the book at www.kashrushalacha.com
- Saffron – year-round, Pesach
-
Bitul of Safek Issur (Part 1)
-
Shach
-
Glycerin in liquid medicines
Buy the book at www.kashrushalacha.com
Teraifos in Milk and Poultry
- Milk/Dairy (introduction, DA cows, Holstein cows for milking)
- Poultry/Eggs (general, injections, buka d’atmah, tzomes hagidin, broken wings & bones, Meckel’s Diverticulum, other, checking in the USA)
Tuna Fish Without Hashgachah Temidis
- Introduction
-Chilek
-
Chilek shel uman
-
Uman lo mareh nafsheh
-
Kirvei dagim
-
Other fish
-
Kovush
Buy the book at www.kashrushalacha.com
Vegetable oil from an animal/vegetable factory
-
Two cases (A/V plant, transported overseas in ship hold)
-
Five Gemaros/Four Opinion
-
Shach
-
Deodorized Oil
Buy the book at www.kashrushalacha.com
Bitul of Ingredients Added Intentionally
- Rashba;
- Rav Teitz;
- Iggeros Moshe;
- Minchas Yitzchok;
- Contemporary Examples
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Davar Hama'amid (part 2)
- Question from Mishnah;
- Pri Chadash;
- Chavos Da'as;
- Pnei Yehoshuah;
- Difference in nomenclature
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Davar Hama'amid (part 1)
- Four early sources;
- Exceptions;
- Examples
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Pesach Medicine Lists (part 2)
- Final three answers (Magen Avraham, Taz, Nodah B'yehuda);
- Are there really 6 opinions;
- Practical considerations;
Buy the book at www.kashrushalacha.com
Pesach Medicine Lists (part 1)
- Four cases and two cases (pomegranate wine, tzitzis, eggs, shatnez, Pesach medicine lists, bagged lettuce)
- When to rely on the uman (6 explanations)
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Wine B'lios are Lifgam Into Other Liquids
- B'lios are lifgam
- Scotch in sherry casks
- Fruit punch
- Hot b'lios
- L'chatchilah
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Kashrus in the Workplace
- Inherent concerns
- Equipment/keilim issues
- Maris ayin
- Basar shenisalem
- Coffee
- Fruit and vegetables
- Water cooler
- Salad
- Pizza party
- Cafeteria
- Refrigerator
- Microwave
Soap
- Saponification
- Sicha k'eshtiyah
- Detergent
- Certification
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Bitul b'shishah (part 2)
- Hashgachah Applications
- Canadian Whisky
- Concentrated wine and grape juice
- Scotch aged in sherry casks
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Bitul b'shishah (part 1)
- Bitul b'shishah
- Which liquids
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- Hard Apple Cider
- Apple Juice without hashgachah
- Substitution for benefit
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Jewish Owned Beer Company
- Source
- Rif
- Rambam
- Rosh
- Maharshal
- Halacha
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Beer
- Bishul akum
- Eretz Yisroel
- Yeast
- Ingredients
- Isinglass
- Equipment
Sake
- Definitions
- Ingredients
- Equipment
- Bishul akum (liquid, steam, specialized equipment, oleh al shulchan melachim)
Buy the book at www.kashrushalacha.com
Beer Distributed by a Jewish Company
- Distribution of beer
- Mumar
- Beer can be chametz she’avar alav haPesach
- Mechiras chametz but remained open
- Selling the whole company
Pesach Which Begins on Shabbos
- Time of Korban Pesach
- Forgot zeroah & Beitzah
- Size of kos of kiddush
- Sit for vayechulu
- Forgot havdalah
- Forgot saltwater
- Min hazevachim u’min hapesachim
- Forgot charoses
- Add wine to charoses
- Cooking for 8th day
Starbucks and Teavana
- Mei Devash;
- Starbucks (approaches, assumptions, concerns)
- Teavana
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Drinking in a non-Jew's bar or home
- Source of the prohibition;
- Which locations;
- Which beverages.
Buy the book at www.kashrushalacha.com
Introduction
How Alcohol is produced
What is included in yayin
Scope
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Water touching entire utensil
- Fully submerged
- Electric pot and blender
- Springform pan
- Pocket knife
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Air bubbles
Beis Hastrarim
- Principle
- Kalmarin
- Reason for the principle
- Keurig heating canister
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Plastic handle on metal pot
Shelf or basket in the keilim mikvah
- Contradictory Mishnayos
- Ravyah, Chacham Tzvi, Rash
- Summary
- Later Poskim
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Large equipment
- Reasons why tevillah might not be necessary
- Are tumah and tevillah related
- Holds more than 40 se’ah
- Oven racks
- Refrigerator shelves
- Glass tabletop
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Give utensil to a non-Jew
- Temporary or permanent solution
- Give part to a non-Jew
- Hefker
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Shabbos and Yom Tov
- Tevillas keilim on Shabbos
- Give a present
- Muktzeh
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Electrical Appliances
- Damage from tevillah (electrical circuit issues, corrosion)
- Asui leshamesh im hakarka (Chelkas Yaakov)
- Can’t be toiveled
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Non-Jew temporarily owned item (mechiras chametz)
Utensil owned by a Jew and non-Jew (partnership)
Prohibition to use utensil before tevillah
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Keurig Machines
- Description of the machine
- Reasons why tevillah might not be required
- 'Break' and fix by a Jew
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Pump pot or urn manufactured for Jews
- Basic idea
- Uman koneh b'shvach kli
- Kinyanim
- What to acquire
- Oversight
- Distribution
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Retinning
Uman Koneh B’shvach Kli
- Basic halacha
- Factory workers
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Kosher dish in a non-kosher restaurant
Genaivas Da’as
- Examples and reasons
- He fooled himself
- Intention
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Temporary use without tevillah:
- General halacha
- Microwave tray
Disposable aluminum pans
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Denatured Alcohol Update
- Description
- Rejected positions
- Edible in the denatured form
- Removability of the denaturant
- Edibility reconsidered
- Source of the alcohol
Kashrus of Medicine
- Liquids and chewables
- Edibility
- Ach’shvei
- Severity of illness
- Flavors
- Gelcaps/Softgel
- Ingredients
- Substitutions
- Decision tree
- General rules
Restaurant, dish rental and other businesses
- Responsibility of the Hechsher?
- Need for tevillah
- Bitul of dishes which had no tevillah
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Non-Foods and Foods for Pesach
- Coated items
- Things which go into the mouth
- Medicines & cosmetics
- Gluten-free
- Nuts
- Coffee
- Fruits & vegetables
- Meat & poultry
Containers of packaged food
- Sold by a non-Jewish company (emptying slowly, not a kli, creating a kli via thought, disposable spice grinder)
- Sold by a Jewish company
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Davar sheyesh lo matirim
- Yoshon (malt, milling)
- Shemittah
- Chazusah
- Insects (broccoli, orange juice)
- Tevillas keilim
- Chametz
Klei sechorah
- Jew purchased for non-food use
- Tevillah before it was required
Tevillah at a Houseware store
- Storekeepers
- Tevillah after the sale
- Tevillah for a present
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Layered or Coated Utensils
- Basic halachos
- Ma'amid
- Disposable spice grinders
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- Storage containers
- Toaster
- Blech
- Sandwich-Maker
- Immersion Blender
- Meat Thermometer
- Flour Sifter
- Food Scale
- Immersion Heater
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Adding water to an electric urn on Yom Tov
- Introduction
- Urns and Pump Pots
- Basic operations
- One coil vs. two coils
- Grama
Food Preparation (Klei Seudah – Part 2)
- Shechitah knife
- Reddler
- Rolling pin and other examples
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Food Contact (Klei Seudah – Part 1)
- Source
- Miinor separations (aluminum foil)
- Defining food contact (nut cracker)
- Unintentional contact (can opener)
- Covers
- Barbecue cover
- Toaster oven
- Crock pot ceramic base
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Tevillah without a bracha
How to perform tevillah
-
Timing
-
Holding the utensil
-
Bracha on tevillah
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Where to Perform Tevillah:
-
Mikvah
-
Lake or river
-
Snow
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Materials (Part 2)
-
Plastic
-
Cardboard
-
Paper
-
Aluminum and other “new” metals
-
Other materials
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Noodle kugel
- Jewish ownership
- Mei peiros
- Need for hafrashah on pasta
- Baking after cooking
- Is kugel ‘baked’
- Tureisah d’nahamah
- Hafrashah in noodle stage
Belilah Raccah and Belilah Avah (part 2)
- When to do hafrashah for belilah rakah
- Pancakes
- Sheet cakes
Belilah Raccah and Belilah Avah (part 1)
- Rash and Rabbeinu Tam (donuts, pasta, pet food)
Shelichus for Companies (challah and mechiras chametz):
- Authorization
- Non-Jewish Company
- Mumar
- Manager
- Sheliach Oseh Sheliach
Performing the hafrashah
- Verbalizing the hafrashah
- Wording of the bracha
- Standing for the bracha
- Designating the challah
Hafrashos for the Future
- Flour has not yet arrived
- Brachos on tevel hafrashah system
- Hafrashah for Shabbos
Sinning to save else from sinning (חטא בשביל שיזכה חבירו )
- Hafrashah from non-mukaf
- Seemingly contradictory Gemaros
- Rishonim’s resolutions
- Save from shmad
- Other examples
Mukaf
- Gr"a's three categories
- Proofs and details
- Shulchan Aruch and Shach
- In the tevel hafrashah system
Tziruf Sal (practical applications)
- Accepting of mixture
- Packaging and multiple packages
- Large container and refrigerators
Flour from different years (Part 1)
- Issue for the tevel matzah system
- In Chutz La'aretz
Whole Wheat Flour
- Flour production
- Recombination method
- Yerushalmi's explanation
- Germ and wheat gluten
Shee'arehah Nikkarim and the Dough-Ball System
- Mukaf
- Bavli & Yerushalmi Sources
- Dough-Ball System
- Kezayis for hafrashah
- Burning the challah
- Separation and burning in the tevel-dough system
Commercial Hafrashas Challah Methods
- Traditional
- Dough-balls
- Tevel dough or matzah
- Sell to non-Jew
- Parts of the Mitzvah
- Most Jews Live in Eretz Yisroel
Succos after shemittah
-
Aravos
-
Hadassim
-
Esrog
-
Lulav
-
Bamboo for s'chach
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Identifying Kitnios
- 'New' foods
- Kitnios vs. midgan
- Seeds not eaten
- Quinoa
- Cottonseed oil
- Hemp
Pesach during shemittah
- Korban Ha'Omer
- Biur and Vidui Ma'aser
Click here to see a video on biur ma'aser sheini
- Price
-
Biur
-
Mtzvah of biur
-
Kedushas shevi'is after biur
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Summary of First 6 Shemittah Topics:
-
General Points (hashkafah, by the numbers)
-
Consumers (years, borders, yevul nochri, greenhouses, heter mechirah, otzar Beis Din, kedushas shevi'is)
-
Farmers (heter mechirah, keep shemittah, otzar Beis Din, Keren Hashvi'is)
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Viability
-
Source and logic
-
Practical implementation
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Inherent Halachic Issues Part 2
-
Lo Sechanem
-
Shelichus is required
- Lo sechanem to sell land
- Sheliach lid'var aveirah
- Invalidates the shelichus
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Inherent Halachic Issues Part 1
-
Tabu
-
Ha'aramah/Gemiras Da'as (ha'aramah be'd'rabannan, mechiras chametz, Devarim shebilev)
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Introduction to Heter Mechirah
-
Prerequisites
-
Yevul nochri
-
Shemittah is d'rabannan
-
Desperate situation/dochak
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Using Shemittah Produce
- Lemon
- Apple
- Oil
- Wine
- Animal food
- Picking fruit
- Cooking & pureeing
- Miscellaneous
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Which Items Have Kedushas Shevi'is (Part 2):
-
Herbs and flowers
-
Ta'aruvos and b'lios
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Which Items Have Kedushas Shevi’is
-
General rules
-
Yevul nochri (non-Jewish produce)
-
Animal food
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Other Elements of Kedushas Shevi'is
-
Keep in Eretz Yisroel
-
Sechorah
-
Biur
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Introduction to Kedushas Shevi’is
-
Overview
-
Mitzvah to eat?
-
Gramah
-
Leftovers and Shemittah bins
-
Feeding children
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Sefichin for farmers
-
Planted in the sixth year
-
Grains & kitnios
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Sefichin for Consumers
- Applications based on logic of issur - fruit, four fields, grows wild, animal food, field of non-Jew
- Other Details - olei Mitzrayim, hana'ah, items without kedushas shevi'is, harvested in 8th year
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- Issur on Land or Person?
- Hefker
- Meshumar & Ne’evad
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Melachos D'rabannan
-
General rules
-
Examples for non-farmers
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Melachos D'oraisah in Avodas Karka
-
Avos & toldos
-
Zoreah
-
Zomer
-
Kotzer & botzer
-
Choresh & noteah
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Greenhouses
-
Introduction
-
Atzis she'aino nakuv
-
Zoreah babayis
-
Other factors
-
Summary
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Borders of Eretz Yisroel
-
Olei Mitzrayim & Olei Bavel
-
Identification of the border
-
Southern border
-
Hor Hahor
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Determining the year
-
General points
-
Fruits and vegetables (fruit, esrog, citrus, grains, kitnios, vegetables)
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Bee Products
- Shulchan Aruch 84:13
- Honey
- Retail honey
- Royal jelly
- Beeswax
- Pollen
- Bee bread
- Bee propolis
- Other bee products
Timtum Halev (part 2):
- From eating 'heter'
- Contradiction,
- More-extreme positions
- Compromise positions
Timtum Halev [Part 1]
- Mother's Milk
- Chalav Nachris
- Sakanah vs. timtum
- Perform the forbidden act
- Time-bound issurim
How Food Can Be Chametz
- Five grains
- Barley malt
- Beer & whisky
- Glucose
- Ethyl alcohol
- Vinegar
- Fermentations
How Food Can Be Chametz
- Five grains
- Barley malt
- Beer & whisky
- Glucose
- Ethyl alcohol
- Vinegar
- Fermentations
How Food Can Be Chametz
- Five grains
- Barley malt
- Beer & whisky
- Glucose
- Ethyl alcohol
- Vinegar
- Fermentations
Milk from cows that ate chametz
- Kol yamehah
- Zeh v'zeh gorem
- What do they eat
- Peh she'asid
- Practical application
Methanol Recovered from a Biodiesel Reaction
- Our halacha
- Biodiesel production
- Methanol recovered
Yotzeh from a Kosher Animal (Halacha)
- Meimei chalav
- Machlokes
- Proofs and explanation
- Poskim
Homeopathic Remedies
- Introduction
- Active ingredients
- Bitul (ChaNaN on cold blends, bitul on items added intentionally)
- Inactive ingredients
- Is it a refuah yeduah
Coffee and Tea
- Coffee - inherent concerns, office settings, Keurig machines
- Tea - inherent concerns, Shabbos, Teavana stores
- Joulies
Milk powder and casein (revision)
Cheese vs. butter
- Cheese from chalav akum
- Cheese vs. butter
Cheese Finishing
- Pressing
- Salting and Brining (dry salting, brine salting)
- Cutting and Packaging (kashering)
Creating Gevinas Yisroel (Part 3):
- Details of Shach's opinion
- Ownership
- Computerized addition of rennet
- Must you see cheese-making
- Who do we pasken like
Creating Gevinas Yisroel (Part 2):
- Applications of Rema's opinion
- Yotzeh V'nichnas
- Video Camera
- Control Room
Gevinas Yisroel on Acid-set Cheese
- American minhag
- Rennet in acid-set cheese
- Skyr & bakers cheese
Overview of the dairy industry:
- Milk structure
- Fat (cream, butter)
- Protein (casein, cheese, whey, yogurt)
- Sugar (lactose)
- Water and Minor Components
Chalav Yisroel via Video Camera
- "Seeing" via video
- When to watch
- Technical hurdles
- Computerized farms
Chalav Stam from Other Countries
- Introduction
- Trust US Government
- Law on the Books
- Country by Country Decision
- Enforce their Laws
Chalav Stam (continued)
- Iggeros Moshe's Third Teshuvah
- American Farmers
- Indian Micro-farmers
Milk and Meat in the Home - Part 2
- Waiting six hours - general rules, meat or dairy pot, hard cheese
- Non-food use - pet food, other benefits
- Meat and fish - separations, bitul
Milk and Meat in the Home - Part 1
- Foods - Dairy bread, imitation items
- Food preparation - separations (oil and spices, double oven), oven/microwave/stovetop, kashering back and forth
Supermarket Chametz After Pesach
- Introduction
- Zecher Yitzchok
- Mechiras Chametz (form, chametz purchased on Pesach, sale of shares)
- Conclusion
Karpas vegetable choice
- Introduction
- Vegetables to Avoid
- Karpas/Celery
- Other Preferences
Denatured Alcohol
- Description
- Rejected Opinions
- Edible in the Denatured Form
- Removability of the Denaturant
- Edibility Reconsidered
- Miscellaneous (other ingredients, non-beverage drawback, alcohol source, nifsal mei'achilas kelev)
Hachana in a Pesach Hotel
- Waiting
- Marbeh B'Shiurim
- Incomplete Hachanah
- Non-Jew Performing Hachanah
Hag'alah Short Course
- Introduction
- Decide - just hag'alah, materials
- Clean - rust, holes, cracks &crevices, necks
- Aino ben yomo
- Boiling water -general, pot of water, pour boiling water
- Rinse
See the video of the shiur at here
Which Foods Might Be Chametz Part 2-Halacha
- Tempering of Flour - chametz, matzah
- Oats
- Bran & Chaff - Koji fermentation, furfural
Which Foods Might Be Chametz Part 1-Examples
- Basic chametz
- Malt uses
- Ethyl alcohol
- Glucose uses
- Other
Chalav stam
- Do we accept Pri Chadash?
- Iggeros Moshe
- Disagreement with Iggeros Moshe
- Explanation of Iggeros Moshe
Ne'emanus of a child
Using milk which is not Chalav Yisroel
- Pri Chadash/Chasam Sofer
- Proofs
- No non-kosher animals in the city
Barnacle Goose
- Worms in Meat and Fish
- Explaining the halacha
- Added details
- Anisakis highlights
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Bee Parts
- Creating a Situation of Ain Kavonoso Levatel
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Frozen Herbs
- Dehydration
- Mechanically Dried
- Sheretz Saruf
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Identifying Weak Hashgachos (part 2)
- Nogeah b'davar for issur v'heter
- Tzorchei ha'ir
- If he is ne'eman
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Identifying weak hashgachos (part 1)
- Everyone has ne'emanus
- Is he nogeah?
- Source of the information
- Lemeichash mebaii
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Trusting an individual man, woman or child (Part 2)
Man, woman or child as a Mashgiach
- Bedikas chametz
- Tevillas keilim for glass
- Trusting a child
- Checking vegetables
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Trusting an individual man, woman or child (Part 1): Cases & factors
- Zavvah
- Taharos & shechitah
- Bedikas chametz (Tosfos)
- Bedikas chametz (Ran)
- Techum
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Found three insects
- Insects
- Teraifos
- Chametz
- Sefer Torah
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Broccoli
- History
- Removable Issur
- Hopelessly Lost
- How Hard to Find It
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Raspberries & Blackberries
- Frozen vs. fresh
- Finding insects
- Chiyuv bedikah on frozen berries
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Safek arlah
- Introduction
- Principles
- Kol d'parish and miut hamatzui
- Safek kavuah
- Other reasons to be machmir
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Miut Hamatsui
- Teraifos
- Insects
- Defining miut hamatzui
- Questions
- Practical (copepods)
- Other considerations
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Sampling instead of checking (Part 2)
- Nishmas Adam
- Support in the Poskim
- Practical Applications
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Source for a chiyuv bedikah
- Checking vegetables on Shabbos (borer, muktzeh, killing the insect)
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Where did the infestation occur
- Why not follow chazaka
- Calimyrna figs
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Size of forbidden insects (part 3)-Indirect proofs)
- Lo nitna torah l'malachai hashareis
- Further details on the lenient opinion
- Summary
Size of forbidden insects (part 2)-Direct proofs
- Five grades of insect sizes
- Poskim's descriptions of insect sizes
- Nekudah shechorah
- Citrus scale
Size of forbidden insects (part 1) Questions
- Whose vision?
- Visible or iIdentifiable?
- Mutar or ones?
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Atzis she'aino nakuv
- Mushrooms
- Modern mushroom growing methods
- Hydroponically grown vegetables
- Safek issur
- Leaf miners
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Attached to the ground but didn't crawl
Citrus Scale
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Takalah
- Business with forbidden foods
- When some hold it is mutar
- Practical applications
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Flour
- Milbin
- Two questions
- How is it possible
- Why think it happened
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Definition of Pirash
- Sfekos of the Gemara
- Im timzah lomar
- Pirash meis
- Teiku b'drabannan
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Pour water into another container
- Choosing a filter
- Incomplete insect (ever she'ain hanishamah teluyah bo, dissolved during cooking)
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Copepods in New York City Water
- Background
- Moschim and nov'im
- Three opinions
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Permitted Insects
- Introduction
- Water-based insects
- Bal Tishaktzu
- Assur Mitichlas Briyaso
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Kashering after bishul akum
- Is kashering required
- Choleh
- Shefah
- Ger
- What type of kashering
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Defining Edible Raw
- Dates and Salted Fish
- HardAgasin
- Sweet Corn
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Methods of Food Preparation [Part 3]
- Microwave
- Induction cooktop
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Methods of Food Preparation [Part 2]
- Smoking
- Steam
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Methods of Food Preparation [Part 1]
- Brining
- Pickling
- Smoking
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Fish Which is Salted and then Cooked
- Small Fish
- Passably Edible
Hot Smoked Salmon
- Edible Raw Together With Other Foods
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Basis for Commercial Hashgachah
Safek Bishul Akum
References to Earlier Discussions
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Jew Participated in End of Cooking [Part 2]
- Mitztamek V'yafeh Lo
- Hashlachas kisem
- Practical applications
- Cooking was undone
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Jew Participated in End of Cooking [Part 1]
- Background of the machlokes
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Shiur of Ma'achal Ben Drusai
- Non-Jew Removed Food From Fire
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Pas Yisroel leniencies for bishul Yisroel
- Ran
- Rashba
- Terumas HaDeshen
- Shulchan Aruch
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Cooking in a Jew's house
- Pre-Shulchan Aruch
- Shulchan Aruch and afterwards
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The food is oleh if prepared differently
- Parperes
- Three applications
- Proofs
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Waiting for Pas Yisroel
- Four mil or one mil?
- Measuring a mil
Mechaber's opinion
- 112:8 and 112:16
- Aseres yimei teshuvah
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Aivah
- When it applies
- Issurim d'rabannan
- Issurim d'oraisah
- Bnei L'viyah
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Guests who eat pas paltar
- Bitul B'rov
- Avidah lit'amah & ma'amid
- D'mai and Pas/bishul Akum
- Kitnios
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Late participation in the baking
- Karmu P'nei Hapas
- After ma'achal ben drusai
- Is chitui helpful
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Lifnei Iver
- Issur D'oraisah
- Issur D'rabannan
- Other Considerations
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Residual heat
- Like hashlachas kisem
- Mechaber/Rema
- How long can it last?
- Convection (and regular) ovens
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Light bulb & glow plug
- Gemara
- Hashlachas Kisem
- Light bulb & glow plug
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Pas Bal HaBayis
- Bishul Paltar
- Maharit Tzahalon
- Rav Moshe's Opinion
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Changes in Status
- Pas bal habayis from a paltar
- Edible raw & oleh al shulchan melachim
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Pas Haba'ah B'kisnin
- The halacha
- Wraps
- Breakfast cereal
- Pretzels & doughnuts
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Egg on Bread
- In vs. On
- Knishes
- Egg on bread
- French toast
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Pas Yisroel is temporarily available
Pas Paltar is more desirable
- Better or different
- Cheaper or more convenient
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Jewish-owned Pas Paltar
- Two reasons
- Iggeros Moshe
- Definition of a Paltar
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Irreligious Jews
- Introduction
- Chasnus
- Mumar
- Related Issues
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Kashering where you're afraid to break the utensil
Libun gamur for cheress
Three hag'alos for cheress