Home Brewing Archives : 'Booch News: Recent Episodes

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Kudos to Hannah Crum for two new AI-generated informative videos promoting the home brewing of kombucha and Jun, “the champagne of kombucha”.

These companion videos are brief (6-minute) animations that pack a lot of knowledge, supplied by Hannah, the author of The Big Book of Kombucha and owner of Kombucha Kamp, a source for all things kombucha. Indeed, my own homebrewing journey began over 15 years ago when I purchased my first starter and SCOBY from Kombucha Kamp — the descendants are happily fermenting away, many thousands of gallons of delicious homebrew later.

Kombucha Is Just the BeginningIn this brief, clearly narrated video, Hannah details the history, science, and production techniques involved.

She situates kombucha within a living process of fermentation, and a microbial world that is ancient, generous, and wise, and that reclaims our health (and our pocketbook!) from corporate control.

We became passive buyers of functional beverages, completely detached from the living processes that create them. But stepping back into that role or creator doesn’t require a laboratory or a degree in microbiology. You don’t have to start with complex or finicky recipes to revive this lost skill. You only need a single, reliable starting point. That is exactly what makes kombucha so uniquely valuable. It provides a highly forgiving, visually clean, and incredibly safe environment. It is the perfect teacher to help you overcome hesitation and learn to read the signs of healthy fermentation.

Jun Tea, the Champagne of KombuchaThe second video in the series promotes jun — the less common, lighter, and exquisite version of a fermented tea.

The companion video highlights the production of Jun, made with organic honey, green tea, and a dedicated SCOBY. It opens with a comparison of the costs of store-bought beverages and the savings achieved through home brewing. This was precisely the reason I looked into making my own when I realized my daily bottle of ‘booch was costing me well over $100 a month, and a one-time investment in the starter and brewing vessel from Kombucha Kamp would set me up for life. I’ve saved literally tens of thousands of dollars, over the last 15 years, by brewing my own.

Picking up a bottle every day at the grocery store creates a massive financial leak in your budget. This chart shows the real financial breakdown. At $3 to $7 a bottle, the daily commercial habit easily exceeds $100 a month. Compare that to brewing at home, where your ongoing cost drops to pennies per glass.

Highlighting the specifics of Jun vs. kombucha production, the video outlines the need for premium ingredients, a custom Jun-friendly SCOBY, and environmental awareness.

Jun relies on two specific ingredients, green tea and raw honey. This distinguishes it from the traditional kombucha, which uses black tea and refined cane sugar. Utilizing raw honey and green tea elevates the process from a basic wellness routine into an artisanal craft that prioritizes premium, nutrient-dense inputs.

Kombucha Kamp

Choosing Kombucha Kamp plugs you directly into a global network of knowledge. With access to proven recipes, comprehensive guides, and a dedicated support system, you are never left to figure it out alone.

NotebookLMOn a final note, I was impressed that Hannah produced these videos with NotebookLM (as shown in the watermark on the lower right corner of each frame). I began experimenting with this generative AI program back in 2023 and it has continued to evolve. Together with Claude and Midjourney, it’s one of my go-to (free!) tools for content creation.

Others are embracing generative AI, as in these charming 2-part children’s videos by Zoey Shamai, celebrating the 20th anniversary of Canada’s Tonica Kombucha.

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This post originally appeared in Aneta’s Journal, 221BC Kombucha, Sarasota, Florida. It is reposted with their express permission.

I. That “Kombucha Face”There’s a certain look that’s unmistakable. You offer someone a sip of kombucha, and within seconds, eyebrows arch, lips tighten, and their whole face puckers like they’ve bitten into a raw lemon. That, my friends, is the Kombucha Face.

But here’s the real question: Is kombucha supposed to taste like that?

In recent years, an unspoken competition has emerged—a kind of “sour arms race.” Home brewers and brands alike have pushed kombucha further and further, chasing shock value and acidity under the belief that harsher means healthier.

But is it true? Is more always better?

Somewhere along the way, we’ve forgotten something essential: Fermentation is about transformation, not punishment.

This piece explores something few are asking: When is kombucha over-fermented? How do we know when to harvest kombucha at its peak—and why do so many miss the moment? What does this tell us about the delicate balance between health, nature, and taste?

II. What Fermentation Is—and Why It’s BeautifulFermentation is one of the oldest forms of food preparation known to humankind. Before refrigeration, before industrial preservatives, before labels and expiration dates, there was fermentation. It wasn’t a trend or a health hack, but rather it was a quiet partnership between people and the invisible microbial world.

At its core, fermentation is a process of transformation through time. Yeast and bacteria consume sugars and, in return, produce organic acids, carbon dioxide, and a host of other beneficial compounds, including probiotics. The result is not simply a preserved food, but a reimagined one—full of complexity, vitality, and often, unexpected nuance.

But here’s the truth: Fermentation was never meant to be lawless.

It is not a “the longer, the better” situation. True fermentation operates within a delicate rhythm. It requires restraint, observation, and a respect for timing—qualities not always honored in a culture addicted to extremes.

We live in a world where we often confuse intensity and quantity with effectiveness. But just as a burnt piece of toast isn’t “extra cooked,” a brew that’s soured beyond recognition isn’t necessarily “extra healthy.” It may be a sign of imbalance. Even fermentation can go too far.

III. When Fermentation Goes Too FarNot all sourness is created equal.

In traditional fermentation, there is a moment—a fleeting window—when everything feels in balance: the tang is felt but not aggressive, the original flavor still whispers beneath the acidity, and the body welcomes the ferment without resistance. That is the sweet spot. After that, the microbial ecosystem continues marching forward. The acids accumulate. The sugars disappear. And the flavor crosses a threshold. This is over-fermentation—not a failure, but a transformation that goes too far.

It’s not dangerous, necessarily. The product is still alive, still technically edible. But it may no longer be pleasant or nourishing in the way it was meant to be. Over-fermentation often tastes like vinegar, stripped of roundness, depth, and drinkability. It can be sharp enough to irritate the stomach, with an acidic aroma that overpowers the senses. When the pH drops below 2.5, you’re not sipping a tonic—you’re bracing yourself.

I remember this well from my childhood in Poland. When food came from our garden, and the cellar was our refrigerator, we learned how to read each ferment like a clock. We knew when our kefir was perfect for sipping, and when it had turned too sour to enjoy straight. That’s when we’d fold it into soups or use it in place of sour cream. The same with sauerkraut—crisp and lively when young, but if left too long, rinsed and cooked down into stews. We respected our ferments at every stage, but we also knew when their moment had passed.

Our bodies were created with wisdom. The same intelligence that guides our breath and heartbeat also informs our sense of taste, digestion, and balance. When something is good for us—truly good—it usually doesn’t need to be forced. And yet, we’ve been taught to override these signals. Marketing tells us that if a little is good, more must be better.

The truth is, kombucha isn’t meant to ferment endlessly. It’s not a “set it and forget it” product. It’s a living culture that signals when it’s ready, and the best brewers listen. For traditionally brewed kombucha, the sweet spot is reached when acidity and aroma align, typically around the time when the tea’s original character still lingers and the tartness feels uplifting, not abrasive. Beyond that, the drink begins to lose its nuance. The complexity flattens, and what once sparkled with life begins to taste like vinegar’s shadow.

True fermentation isn’t a race to the lowest pH. It’s a conversation between time, temperature, and taste. And sometimes, knowing when to stop is the greatest act of respect for both the culture and the consumer.

IV. Kombucha Is Not Vinegar – The Art of BalanceKombucha is a fermented tea, not a vinegar tonic. Yet somewhere along the way—perhaps in the fog of wellness trends and DIY extremism—we began to blur the line. The sharper the taste, the better the microbes, we were told. The more it stung, the stronger it must be. But this belief misunderstands both biology and tradition.

Vinegar and kombucha share some overlapping processes, but their destinies are not the same. Vinegar is the final stage—a ferment pushed to its limit, where nearly all sugars have been consumed and acidity dominates. Kombucha, on the other hand, is meant to be balanced. It should retain the essence of the tea from which it came, tempered with a tangy brightness and gentle effervescence. It should feel alive, not caustic.

There is an artistry in stopping fermentation at the right moment. It is not a science of precision so much as an act of discernment. You’re looking for that point where the acidity lifts the flavor without flattening it. Where the bacteria and yeast have done their work, but not overstayed their welcome. Each batch speaks its own dialect, shaped by temperature, time, the health of the SCOBY, and the sweetness of the tea. You cannot force kombucha into a schedule. You must know when it is done—not by formula, but by feeling.

And above all, kombucha should invite you in.

If it makes you wince, recoil, or grimace, it’s not kombucha at its best. It may still be “real,” but it’s lost its generosity. A good kombucha has structure, yes—but it also has soul. That is the mark of a ferment made with wisdom, not bravado.

“To everything there is a season, and a time to every purpose under the heaven.”

— Ecclesiastes 3:1

Fermentation, too, has its season. And the wisdom lies not in prolonging it, but in knowing when it is complete.

V. Respecting Nature’s TimingWe live in a culture that fears the pause. That rushes, stretches, and extracts. We ferment longer, fast harder, cleanse deeper—not because we’re listening to our bodies, but because we’ve forgotten how.

But nature is not in a hurry. And fermentation, at its core, is nature at work. It does not respond to the clock we wear on our wrists. It listens instead to temperature, humidity, and the subtle shifts of its microbial needs. It doesn’t rush to finish nor linger to impress. It finishes when it’s done. Our simple role is to humbly and patiently notice.

This is perhaps the greatest discipline of fermentation: learning when to stop.

In my childhood home, we didn’t measure pH or track grams of acid. We tasted. We watched. We trusted our senses and the generations before us who had learned how to listen. We knew when a ferment was peaking, not because a number told us so, but because the body welcomed it. And when it went too far, we didn’t panic. We adapted. But we never pretended that more time meant more value.

And maybe, as we learn to taste that balance again, we’ll also remember how to live it.

Balance is a form of reverence.

DisclaimerThe views and opinions expressed in this guest posting are solely those of the original authors and other contributors. These views and opinions do not necessarily represent those of this publication.

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Vietnam has, understandably, stronger associations with coffee than tea. The country exports more coffee than any other country, except Brazil, and cà phê sữa đá (iced milk coffee) is available everywhere, from street corner vendors to 5-star hotels. However, not everyone (myself included) drinks coffee.

I was, therefore, delighted to stumble on the newly opened Tea’Space, located off a busy District 1 thoroughfare down an alley and up a steep flight of stairs to a 2nd-floor oasis of peace and serenity.

They offer an impressive variety of quality teas, served in tall-stemmed glasses, with a complimentary chilled Vietnamese-grown tea (from the Northern Highlands) to start.

My cold-brew Melon Oolong/Dragon’s Tail White Tea was a delicate floral beverage. Our daughter’s cold-brew Long Jiang tea with fresh longan fruit (similar to lychee) was a sweeter “mocktail”.

A growing number of kombucha brands specialize in unflavored (OG) ‘booch for clients who enjoy the finer things in life. Quality tea produces quality kombucha. Vietnam’s thriving kombucha scene can only benefit from the availability of gourmet teas.

LocationWe visited the Tea’Space in District 1 (200 Lê Thánh Tôn, Phường Bến Thành, Quận 1). There is a second cafe in Bình Thạnh to the north (Villa 3, Đường D5/92 Nguyễn Hữu Cảnh, Saigon Pearl, Bình Thạnh)

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We first reported on Keg Outlet in our February 2020 post Growing Beyond Home Brewing where we referenced three informative videos they had produced:

• How to Make Kombucha in Large Batches to Serve on Draft
• How to Add Natural Fruit Flavor to Kombucha During Second Fermentation
• How to Keg Kombucha and Serve Kombucha on Draft

These are among the 90+ informative videos that Keg Outlet have posted to their YouTube channel. This interview with company co-founder Brandon Hanson is an update on their business and observations on the kombucha industry in general.

Keg Outlet is a small family-run business based in Ventura County, California. Brandon Hanson and his brother Cary initially started “Brew PS” (a play on UPS) supplying home-brew ingredients, but pivoted to selling equipment due to challenges stocking perishable goods. While beer and cold-brew coffee brewers are their primary focus, they have a steady market in kombucha supplies, largely catering to individuals looking to scale up their brewing, often with an eye towards commercial production. The core business provides equipment like kegs, fermenters, kettles, and kegerators.

Scaling upKegging kombucha is a convenient method for larger batches. Keg Outlet has seen a steady interest in home brewers and scaling up to commercial kombucha operations. They also note growing international interest in their kombucha equipment. Their website and YouTube channel serve as valuable resources for people interested in these processes.

Customer focusKeg Outlet remains a small operation run by brothers Brendan and Cary Hanson emphasizing direct customer interaction.

I know a lot of our customers like that they can call and talk to one of us on the phone or shoot us an email and it’s one of us who responds.

In addition to their YouTube, Keg Outlet has published a ‘Drips & Draughts’ podcast series, including an interview with Ethan and Kate from Blue Ridge Bucha in Waynesboro, VA. They share their experience in scaling up from home-brewing.

Brendan: As you build up the brewery side, can I ask what a typical batch size for this is when you’re brewing?

Ethan: Yes. Absolutely. Kombucha, I would say most people in a home brew environment would probably have about a gallon jar. Some people step up to two gallon jars and there might be some people who are working at of five gallon crocks. That’s pretty much all the information you can find available on the internet, will be how to brew one gallon or two gallons.

It’s really been a journey this scale up. We have other kombucha companies we’ve been in their facilities, checked out. Some were operating upwards of couple of hundred gallons. Some are still in two gallon glass jars or five gallon crocks. We have developed our process to where were in 250 gallon vessels. They work just great. The biggest jump actually was from our two-gallon glass jar to the first 25-gallon kettle and it was like, “All right. Can we make this leap?” And, then, from there we just scaled up. We did 25-gallons to 50-gallons then we jump from that to our 250’s.

It feels like a really nice manageable size to really keep that artisanal feeling for us. One brewer can be standing up there with the paddle and just stirring this giant caldron. It’ feels great, it’s real great. From the quality craft side, we’ve actually at this scale we’ve been able to really hone in and have more controls on our grand science experiment, which is our beverage. We can really hone it in and have every batch just to be that much more consistent and we’ve locked in our flavor better than we ever have with our current system which is awesome.

PodcastListen to the podcast to hear Brendan tell the Keg Outlet story.

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Bristol, UK-based Caroline Gilmartin has a PhD in microbial genetics and champions the importance of fermented foods and gut health. She runs fermentation workshops and explains the science behind fermentation. She has a Substack newsletter and Instagram and is a member of both the Guild of Foodwriters and the Fermenters Guild.

Her 2020 book Fermented Foods: A Practical Guide delves into the processes involved in both wild and cultured fermentation, examining the microbes involved, parameters for optimal fermentation, and what happens if you alter them. Topics covered include the importance of the microbiota, gut health, milk and water kefir, yogurt, kombucha, vegetable fermentations, recipes, flavor combinations, and troubleshooting.

The book has a UK focus. Recipes are in liters and grams. Home-brewed kombucha is described as “cheap as chips.” Suppliers include “the best greengrocer in Bristol.”

Science notesCaroline takes the time to explain the basic science of fermentation in detail, with diagrams that clearly show the processes involved.

A list of 85 scholarly papers is provided for anyone curious about the scientific research into fermentation.

RecipesThere are separate chapters on yogurt, milk and water kefir, kombucha, wild and brined fermentation, kimchi, and paste-wrapped ferments. Each lists the nutritional content and health benefits as well as easy-to-follow step-by-step recipes for home fermenters to follow. Each step is clearly explained, and potential pitfalls and troubleshooting are covered.

You can get a sense of Caroline’s approach if you check out her Instagram, which often features her in her home kitchen making kefir.

This is just the book to encourage people to expand the range of ferments they make at home. After years of only brewing kombucha, I have been experimenting with kefir, sauerkraut and kimchi. Each of these not only expands the range of fermented foods and beverages I’m consuming–adding new tastes to my diet–but vastly improves the microbial diversity in my gut.

KombuchaThe 22 pages dedicated to kombucha won’t teach experienced home brewers anything they don’t know and are certainly a fraction of Hannah Crum’s 380-page Big Book of Kombucha. However, the reader will learn about the advantages and disadvantages of batch vs. continuous brew methods and the benefits of setting up a SCOBY hotel.

A woman on a missionIn addition to her late-night home kitchen Instagram videos, Caroline teams with fermentation expert Jo Webster to review and test store-bought kombucha. Sprinkled throughout her book are claims about the superiority of home ferments compared to commercial store-bought brands:

You could just pop to the shops for your kefir and sauerkraut, so what are the benefits of doing it yourself? First, when processes are industrialized, corners are cut, natural variation is eliminated, and products change. For example, many brands of shop kefir are made by reconstituting acid whey waste from commercial Greek yogurt production with isolated milk proteins to make a base. Individual bacterial cultures are then added to the mix and a short fermentation conducted. This is a far cry from the kefiran-rich symbiosis of home-made keifr. Similarly, much commercially produced sauerkraut is pasteurized, so that it remains stable for transportation and storage. Often, starter cultures are introduced for reproducibility purposes, reducing the natural variety of strains involved.

Second, home fermentation is extremely economical. While artisanal fermented foods are comparatively expensive to purchase, because the processes are difficult to scale up, they are easy to do yourself in small quantities.

Not all kombuchas are ‘live’; some are filtered to remove bacteria and yeast to make them shelf-stable, and some are even pasteurized.

Additional ReadingFor examples of kombucha companies that sell small-batch fermented foods see:

• Profile: Simbiótica Fermentación, Mexico City
• Profile: Café Bärbucha, Berlin, Germany
• The Fermentation Farm, Costa Mesa, California – featured in the Spring 2022 issue of SYMBIOSIS Magazine.

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The inventive Andrew Mills, owner of Nunc Living Jun Kombucha in the UK, has developed an intriguing generative AI for kombucha home brewers.

Andrew authored a recent Booch News guest posting championing the benefits of generative AI and unveiled a subscription service “developed using an advanced large language model (LLM) specifically tailored for the food and drink industry.” He has recently launched BuchAI, the “World’s First Kombucha Sommelier. Your instant kombucha and fermentation AI expert.”

It’s simple (and free!) to use. Just access the link at the bottom of the Nunc Home Page and type your question into the “How can I help” window:

Here are some results. Your answers might vary, since generative AI does not necessarily deliver exactly the same answers each time. As with all generative AI you should double-check the results, as we did below – see (*).

Q: How do I start making my own kombucha at home?​Starting your own kombucha brewing venture at home is a thrilling and rewarding experience! Before diving into the process, I’d like to suggest considering Jun Kombucha as well. It’s brewed with raw honey instead of processed sugar, which can be a healthier alternative, and it offers a distinctively delightful flavour. Now, let’s get you started with brewing standard kombucha:

Ingredients and Equipment1. Ingredients: * Tea: 4-7 teabags of black or green tea for a 1-gallon (3.8 litres) batch. Each teabag usually contains 3 grams of tea. * Sugar: 200 grams (1 cup) of granulated sugar. * Water: 3.8 litres (1 gallon) of filtered water. * SCOBY: 1 healthy SCOBY (Symbiotic Culture of Bacteria and Yeast). * Starter Tea: 240 ml (1 cup) of pre-made kombucha tea (from a previous batch or store-bought raw kombucha). 2. Equipment: * A large glass jar (at least 4 litres/1 gallon capacity). * A clean cloth or coffee filter with a rubber band to cover the jar. * A wooden or plastic stirring spoon (avoid metal to prevent reactions).

Step-by-Step Brewing Process1. Prepare the Tea Base: * Boil about 1 litre (4 cups) of water. * Add the tea bags and sugar to the boiling water. Stir until the sugar dissolves. * Remove from heat and let it steep for 5-10 minutes, then take out the tea bags. 2. Cool the Tea: * Add approximately 3 litres (12 cups) of cold filtered water to the sweetened tea to cool it down. Ensure the mixture is at room temperature before moving to the next step. 3. Fermentation Setup: * Pour the cooled tea into the glass jar. * Add the starter tea to the jar. * Gently place the SCOBY() on top. It might sink or float, which is perfectly normal. * Cover the jar with a cloth or coffee filter and secure it with a rubber band. 4. Fermentation Process: * Place the jar in a warm, dark place with a consistent temperature, ideally between 21-24°C (70-75°F). * Let it ferment for 7-14 days. Longer fermentation leads to less sweetness and more acidity, so adjust based on your taste preference. 5. Testing and Bottling:* * After a week, taste your kombucha daily until it achieves your preferred taste. * Once satisfied, remove the SCOBY and 240 ml (1 cup) of kombucha for your next batch starter. * Bottle the remaining kombucha for secondary fermentation if you prefer more carbonation. Use airtight bottles for this process and let them sit at room temperature for 3-7 days before refrigerating.

Tips and Considerations SCOBY Health: Handle your SCOBY with clean hands and ensure it’s free from contamination. * Temperature Control: Maintain a stable temperature to ensure a healthy fermentation environment, avoiding direct sunlight. * Flavour Variations:* Once you’re comfortable with the basic brew, try adding fruits, herbs, or spices during the secondary fermentation for variety.

Health InsightsKombucha is rich in beneficial acids, antioxidants, and vitamins, supporting digestion and offering a healthier alternative to sugary drinks. Remember, the scientifically proven benefits are in the acids and antioxidants, rather than the live cultures.

Would you also be interested in trying a Jun Kombucha recipe? It’s a wonderful alternative that’s brewed with raw honey, offering unique flavours and potential benefits. Let me know if you’d like the Jun recipe as well!

() Note that in this response the BuchAI program uses the term SCOBY when it is obviously referring to the pellicle. We asked for clarification:*

Q: Is there a difference between the SCOBY and the pellicle?​Ah, the infamous SCOBY versus pellicle debate! These terms often get mixed up, but they refer to different aspects of the kombucha brewing process. Let’s clarify:

SCOBY Definition: SCOBY stands for Symbiotic Culture of Bacteria and Yeast. It’s the living culture that facilitates the fermentation of tea into kombucha. * Function: The SCOBY is responsible for converting the sugars into alcohol and acids, which gives kombucha its distinctive flavour and potential health benefits. It is the powerhouse of the fermentation process, maintaining the balance between the yeast and bacteria. * Appearance:* The SCOBY is actually the entire culture present in the liquid. This includes the bacteria and yeast that are in the liquid itself, not just the floating mass.

Pellicle Definition: The pellicle is the cellulose mat formed on the surface of the kombucha during fermentation. It is often mistakenly referred to as the SCOBY, but it’s actually a by-product of the fermentation process. * Function: Although it looks like the SCOBY, the pellicle serves as a physical structure that can protect the kombucha from contaminants. It’s not essential for fermentation but does indicate active fermentation. * Appearance:* The pellicle is a rubbery, pancake-like layer. It can be thick or thin, and its texture can vary depending on the fermentation conditions and the age of the culture.

Key Differences* The SCOBY refers to the entire microbial culture in the liquid that conducts the fermentation. * The pellicle is a visual by-product that forms on the surface and is not required for fermentation.

Understanding this distinction helps in maintaining a healthy brewing process and diagnosing any issues. If you have any more questions about brewing or kombucha science, feel free to ask!

OK, but what about the amount of alcohol in some home brewed ‘booch?

Q: What can I do to minimize the amount of alcohol in my kombucha?​To minimise the alcohol content in your kombucha, you’ll want to focus on a few key aspects of the brewing process. Here’s how you can achieve that:

Tips to Reduce Alcohol Content in Kombucha

1. Lower Fermentation Temperature:
   • Aim to keep your fermentation environment on the cooler side of the desired temperature range, ideally between 21-24°C (70-75°F). Yeast is more active at higher temperatures, which can lead to increased alcohol production. Keeping the temperature on the lower end helps restrict this activity.
2. Shorten Fermentation Time:
   • The longer you ferment your kombucha, the more time the yeast has to convert sugars into alcohol. By shortening the fermentation period, you can control the amount of alcohol produced. Start tasting around day 7 and bottle when it reaches your desired flavour, keeping the alcohol levels low.
3. Maintain a Healthy SCOBY:
   • A healthy SCOBY balances the yeast and bacteria ratio. The bacteria in the SCOBY naturally consume alcohol as a fuel source, converting it into beneficial acids. Ensure your SCOBY is healthy and active to keep alcohol levels in check.
4. Add Less Sugar:
   • While sugar is necessary for fermentation, reducing the initial sugar amount slightly can help lower alcohol production. However, be cautious not to reduce it too much, as it can affect the fermentation process and the health of the SCOBY.
5. Opt for Open Fermentation:
   • Allow some oxygen to reach the kombucha by not sealing it tightly during the primary fermentation stage. This encourages the bacteria over yeast, helping convert alcohol into acids. However, ensure the jar is covered with a cloth to prevent contamination.
6. Secondary Fermentation:
   • If you’re doing a secondary fermentation for carbonation, make sure it is brief (2-3 days) and then refrigerate to halt further fermentation. This limits additional alcohol production.

Almost every commercial kombucha company started with people brewing at home. What to do if you want to turn your hobby into a business.

Q: What do I need to do to scale up my home production to sell kombucha commercially?​Scaling up from brewing kombucha at home to producing it commercially involves several critical steps. It’s an exciting transition, but it requires careful planning and attention to detail. Here’s a comprehensive guide to help you navigate this process:

1. Understand the Legal and Regulatory Requirements Licensing and Permits: Research local and national regulations for food and beverage production. This often includes health and safety permits, food handler’s licenses, and potentially an alcohol license if your kombucha exceeds the legal alcohol limit during fermentation. * Labeling Regulations:* Ensure your product labels comply with regulations, including ingredient lists, nutritional information, and any claims about health benefits.

2. Optimise Your Recipe for Consistency Standardise Your Process: Develop a consistent recipe with precise measurements and fermentation times to ensure every batch tastes the same. * Quality Control:* Implement quality control measures to monitor the health of your SCOBY, fermentation acidity, and flavour profiles.

3. Scale Up Equipment Larger Fermentation Vessels: Invest in larger, food-grade fermentation tanks made of stainless steel or food-safe plastic. * Bottling Equipment: Acquire a bottling line that can handle your production scale, including pasteurization equipment if needed for shelf stability. * Storage Facilities:* Ensure you have adequate space for fermenting, bottling, and storing your kombucha under optimal conditions.

4. Source Quality Ingredients Reliable Suppliers: Build relationships with suppliers who can provide consistent, high-quality ingredients like organic teas, raw honey, and any additional flavourings. * Bulk Purchasing:* Consider buying ingredients in bulk to save costs, but ensure they remain fresh and potent.

5. Develop a Strong Brand and Marketing Strategy Brand Identity: Create a compelling brand story and design appealing labels that reflect your unique selling points. * Marketing Channels:* Use social media, local events, and partnerships with health-focused businesses to promote your kombucha.

6. Establish Distribution Channels Local Retailers: Start by placing your product in local health food stores, cafes, and farmers’ markets. * Online Sales: Consider selling directly to consumers through an online store. * Wholesalers:* Partner with wholesalers to reach a broader audience.

7. Ensure Financial Viability Cost Analysis: Estimate production costs, including ingredients, packaging, labour, and marketing. * Pricing Strategy: Set a competitive price that covers costs and offers a reasonable profit margin. * Business Plan:* Develop a detailed business plan with financial projections to guide your growth.

8. Consider Sustainability Practices Eco-friendly Packaging: Use recyclable materials and promote sustainable practices in your production. * Local Sourcing:* Whenever possible, source ingredients locally to reduce your carbon footprint and support nearby communities.

9. Safety and Hygiene Standards Facility Cleanliness: Maintain strict hygiene standards in your production area to prevent contamination. * Employee Training:* Train staff on safety procedures and quality assurance practices.

10. Experiment with New Flavours Unique Offerings:* Develop a range of flavours to attract different consumer preferences. Consider seasonal offerings to keep your product line fresh and exciting.

As you scale up, remember the importance of staying true to the authenticity of your kombucha—using real ingredients and traditional brewing methods. If you haven’t considered it yet, you might want to explore brewing Jun Kombucha, which is crafted with raw honey and offers a refined taste profile that could set your brand apart.

If you’d like more specific advice or need help with a particular aspect of this journey, feel free to ask!

The range of questions BuchAI can answer is limited only by your imagination.

Q: What are the 10 most common questions people have about brewing kombucha at home?​Brewing kombucha at home is an exciting journey into the world of fermentation, but it can come with its fair share of questions. Here are the ten most common questions people have about brewing kombucha at home, and helpful insights to guide you along the way:

1. What is a SCOBY and why is it important?
   • A SCOBY (Symbiotic Culture of Bacteria and Yeast) is essential for fermenting kombucha. It transforms sweet tea into the tangy, fizzy drink we love by fermenting sugars into acids, carbonation, and other beneficial compounds.
2. What type of tea should I use?
   • Black and green teas are most commonly used, as they provide the nutrients the SCOBY needs. Avoid herbal teas, which often lack the necessary nutrients and might contain oils that can harm your SCOBY.
3. How long should I ferment kombucha?
   • Typically, the primary fermentation takes 7-14 days. The exact time depends on your taste preference for sweetness or acidity and your ambient temperature.
4. How do I maintain the right temperature?
   • Aim for 20-24°C (68-75°F). Use a heating pad around the jar or place it in a warm spot away from direct sunlight and drafts.
5. Can I use plastic containers?
   • It’s best to avoid plastic as it can scratch easily and may leach chemicals. Glass is the preferred material for its non-reactive and transparent qualities.
6. What are the signs of a healthy SCOBY?
   • A healthy SCOBY will be thick, firm, and slightly brown with a sweet, vinegary aroma. It should not be fuzzy, green, or smell foul, which could indicate mold.
7. What can I do with extra SCOBYs?
   • You can store them in a SCOBY hotel (a jar with starter tea), give them to friends, or use them in cooking, composting, or even as a facial mask.
8. Why is my kombucha not fizzy?
   • Lack of fizz can be due to a short fermentation time, inadequate sugar levels, or not sealing the bottles properly during secondary fermentation.
9. How do I flavour kombucha?
   • After the primary fermentation, remove the SCOBY and add fruits, herbs, or spices to the kombucha. Seal it in a bottle and allow a secondary fermentation for 3-7 days for added flavour and fizz.
10. Can I brew Jun kombucha instead?
    • Absolutely! Jun kombucha is a great alternative, using green tea and raw honey instead of processed sugar. It’s often referred to as the “champagne of kombucha” for its delicate taste.

If you’re excited to dive into brewing kombucha at home, I highly recommend exploring Jun kombucha as well. Its use of raw honey offers a unique flavour and health benefits. Let me know if you’d like more detailed guidance on starting your kombucha brewing adventure!

…and some people have wild imaginations!

Q: What are the most unusual questions people have asked about brewing kombucha at home?​Brewing kombucha at home can spark a variety of unusual and intriguing questions. Here are some of the most interesting ones I’ve come across:

1. Can I use my SCOBY to make art?
   • Some creative folks have wondered if they can use their spare SCOBYs to create art projects or even biodegradable leather-like materials. While it’s an experiment in sustainability and creativity, it’s essential to ensure the SCOBY is dried properly to avoid spoilage.
2. Is it possible to make kombucha using different kinds of tea, like herbal or fruit teas?
   • While it’s possible to experiment with herbal or fruit teas, they typically lack the nutrients that a SCOBY thrives on. It’s best to use black or green tea as the base and add herbal infusions during secondary fermentation for flavour.
3. Can I get my kombucha to taste like a specific soft drink or cocktail?
   • Some adventurous brewers try to mimic the flavours of their favourite beverages. While you can experiment with natural flavourings and ingredients during secondary fermentation, results will vary, and it’s best to keep an open mind!
4. What happens if I forget about my kombucha and it ferments for too long?
   • Over-fermenting kombucha can lead to a very sour, vinegar-like taste. While it might not be ideal for drinking, you can use it as a cleaning agent or in salad dressings.
5. Can animals eat a SCOBY?
   • Some pet owners ask if SCOBYs are safe for pets. While a small piece might not harm certain animals, it’s best to consult a vet before introducing anything new to your pet’s diet.
6. Can I dye my SCOBY?
   • Creative brewers have asked about using food colouring to dye their SCOBYs for decorative purposes. While it’s possible, keep in mind it might affect the SCOBY’s health for future fermentations.
7. What if I accidentally eat part of the SCOBY?
   • Accidentally consuming a small piece of SCOBY is usually harmless, though the texture might not be pleasant. It’s rich in probiotics, so consider it an unexpected health boost!
8. Can I ferment kombucha in a coconut shell or other unconventional containers?
   • While it sounds fun, unconventional containers like coconut shells might not be suitable due to potential leaks and uneven temperature regulation. It’s best to stick with glass or ceramic containers.
9. Can I use kombucha to clean my house?
   • Over-fermented kombucha, which turns very acidic, can be used as a natural cleaning agent much like vinegar.
10. Will singing to my kombucha help it ferment better?
    • While there’s no scientific evidence supporting this, some people believe that providing positive energy can influence fermentation. It might not change the chemistry, but it can make the brewing process more enjoyable!

These unusual questions highlight the creativity and curiosity of home brewers. If you have any more unique queries or want to delve into the specifics of brewing kombucha, feel free to ask!

Finally, BuchAI is not averse to answering questions that are on other topics than brewing. Try these on for size:

• What are reasons many small businesses fail?
• What are the 10 highest mountains in the world?
• Do fish have a thirst for water?
• Why are manholes round?

SummaryThere’s obviously no limit to the questions you can ask BuchAI. Andrew has done home brewers a service by providing this free Q&A tool. While the information might not be totally accurate, it’s as good as you’ll find online in Home Brewing Facebook and Reddit sub-groups and has the advantage of being instantly available.

Try it out and let us know what you think (in the Comments below).

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Michael Churchill and his wife Natalia Amijo are industrial designers living in the San Francisco Bay Area. They have employed their design chops to create KOMBU — a sleek, if pricey, appliance for home brewing kombucha. Their “Fermenstation” features a modern design that is purpose built to craft-brew kombucha. It will become available in 2025 at a price of $500 a unit.

The system comprises two compartments: a 3.5 liter (approx. a gallon) front glass jar holding starter and sweet tea where primary fermentation (F1) takes place, with a second rear container holding four bottles for flavoring and secondary fermentation (F2).

The two-stage process is managed with temperature-controlled heating pads on each side. As an added bonus, home brewers can stay connected using a mobile app to control the device from their smart phones to set timers and monitor the temperature.

Continuous brewEach new batch of sweet tea needs about 20% starter kombucha. After filling the bottles, starter kombucha is left over in the jar. The tap is positioned at the correct height to stop flowing when 20% of the liquid remains.

Cost-benefitMichael’s background as an automotive designer might be what led him to create the Rolls-Royce (or, if you prefer, the Cadillac) of home brewing fermentation systems.

While the $500 price might cause sticker shock for some, The Kombu website highlights that store–bought kombucha costs $3.99 a bottle and home-brew no more than $0.39, or a savings of $3.60 a bottle. Running these numbers shows, we estimate, that the $500 investment is recouped after 140 bottles.

A Kickstarter campaign launched July 30th with an initial discount of 30 percent when completed units ship in 2025.

PodcastCheck out he podcast to hear The Kombu story in Michael’s own words.

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Brewch flavorings were created in 2016 by Brendan Woodward, a kombucha enthusiast. He intended to develop a range of flavors for his home brews that were as healthy and efficient as possible. In 2020 his friend Arturo joined the project to establish the brand and define operations and R&D.

They now offer a range of organic flavoring concentrates for kombucha brewers, and FREE SAMPLES are readily available.

Food grade standardsBewch is formulated to food grade standard, specifically for kombucha brewing, to stay compatible with a live culture. Ethyl alcohol is naturally compatible with the yeast and kombucha biome.

Using these flavors helps kombucha brewers avoid pasteurization and a “kill step” since it is a non-caloric solution to the fruit-juice-as flavor and similar syrup-based flavoring systems.

Brewch is used following primary fermentation (F1) of raw kombucha, kefir water, cider, framboise, or malt beverage. It is SCOBY Safe and will not harm the precious biome of the probiotic beverage. Just a few drops per serving are added before bottling. Specifics:

• The flavors have been thoroughly tested for kombucha and other fermented beverages.
• Brewch flavors are fully “SCOBY safe” — tested to ensure that it cooperates with the acetobacter and yeast colony to promote healthy, sustained growth.
• Brewch kombucha flavorings are concentrated from organic compliant, vegan, gluten, and sugar-free organic essences from fruits and vegetables
• Because Brewch is sugar-free, you have final control of your flavoring, fizz, and sweetness during F2 fermentation.
• Brewch flavors can help with long-term predictability and consistency, streamlining the manufacturing and scalability of production.

FlavorsThe current line of flavors is:

Pearesto, Mango Magic, Lemon Grass, Ginger, Cucumber, Manna Fruit, Cranberry Apple, Chai Spice, and Basil.

These are used, in a 1:1 ratio, with either of the pre-flavoring conditioners, Miracle Mixer and Miracle Potion.

These soften harsh acid notes in naturally brewed kombucha and opens up the beverage for full and shelf-stable flavoring without the introduction of foreign yeast, sugars, or off-notes typical in fruit juice concentrates.

Brewch is owned by McKnight Standard LLC, an FDA-registered and inspected flavoring company in Monroe, WA.

Free SamplesBrewch is happy to send FREE SAMPLES of their full range of kombucha products to any home based or commercial brewers.

PodcastListen to the podcast to hear what Brendan and Arturo told me about their flavorings at the KKON23 event.

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Welcome to the first podcast of the New Year featuring bestselling author Duff McDonald!

Duff is the author of several critically acclaimed books, including “The Golden Passport: Harvard Business School, the Limits of Capitalism, the Moral Failure of the MBA Elite,” and “The Firm: The Story of McKinsey and Its Secret Influence on American Business.” His most recent book, Tickled: A Commonsense Guide to the Present Moment, includes a chapter on kombucha.

In this podcast, we’ll hear how Duff was introduced to kombucha via GT’s Gingerade, and what quickly turned into a five-bottle-a-day habit led to him becoming an accomplished home brewer who keeps 30 gallons on the go in his upstate New York home.

Duff’s podcast How to Tickle Yourself, which he co-hosts with Matt McButter (!), has featured KBI President Hannah Crum discussing Consciousness and Kombucha, and the founder of what Duff considers “the best commercially available kombucha in the New York region” Adam Benziger of Laughing Gut Kombucha.

Check into Duff’s podcast, read Tickled, and you’ll quickly see how broad his interests are. He’s into Bob Dylan, Sri Aurobindo, technology, business, education, parenting, innovation, art, and more. What’s fascinating is the role kombucha has in his life, both as a beverage and a touchstone for his philosophy of life.

Duff titles the chapter in his new book ‘Infinite Kombucha.’ It starts with a quote from John Luis Borges on the nature of the infinite. He shares details of how he began home brewing in 2019 and his delight in experimenting with various flavors.

The promise of kombucha is possibility. The flavor of a particular kombucha in choice. Do you know why this happens? Because kombucha is a living drink. That is, it is made with a living yeast. It is alive. Anything that at is alive contains the universe, or infinite possibility. Kombucha is infinite possibility in a drink.

Tickled, p. 226

Listen to the podcast, and you’ll hear details of his home brew setup (with a kegerator in the kitchen for his family to enjoy their freshly brewed ‘booch). What he calls “a different kind of hobby” is a springboard for life:

So we try to eliminate uncertainty in the places where we don’t want it. But the key is then to seek it out in the places where we do. That is what hobbies are for,although you don’t really see the results until you’ve invested the effort. Once you have the craft, you can reside in the deep now, and let uncertainty come at you with all it’s got. That’s why we read. That’s why we play music. That;s why we ski, surf, dance, talk, grow gardens, and more. It’s why we make kombucha.

Tickled, p.234

There’s more about Duff on his website, including an essay on How My Kombucha Hobby Transformed My Life.

PodcastListen to the podcast to hear Duff explain why he’s “tickled” by kombucha.

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A persistent myth advises that the tea brewed to make kombucha should be sweetened with “sugar to taste.” This is wrong. The right information As Hannah Crum explains in Chapter Four of her excellent Big Book of Kombucha, a standard...

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The Virtual Brewers Conference took place online April 21-23. Stout Tanks and Kettles in Oregon presented ‘The Brewer’s Journey: Timeline for the aspiring brewer‘ and kindly made it available for free replay. Although the content was aimed at craft beer...

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Are you a home-brewer whose friends regularly tell you how great your ‘booch tastes? Do you give away bottles and wonder what it would take to make enough to sell? Did you know that the majority of commercial companies started,...

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Lila runs Kombucha to the People. She conducts regular kombucha brewing workshops. This blog posting was originally published on her website and is reprinted here with her express permission. Bringing mindfulness to a kitchen ritual, like brewing kombucha, can help...

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As we reported last month, Lila runs kombucha brewing workshops. This blog posting was originally published on her website and is reprinted here with her express permission. Top 4 reasons it is important to brew kombucha in the age of...

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Last Saturday in Berkeley, California a half-dozen people made friends with their new baby: a SCOBY to take home and begin the life-changing experience of brewing their own ‘booch. They were taking part in a 90-minute class taught by Lila...

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Stout Tanks and Kettles are a Portland, Oregon supplier of quality brewing equipment and tanks used to make Craft Beer, Wine, Kombucha, Mead, and Cold Brew Coffee. We asked them what equipment a kombucha home brewer interested in scaling up...

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Some kombucha blogs are the one place where opinions and advice are shared. Others are a hub, from which a rich variety of spokes radiate out to multiple forms of social media. Get Kombucha is an example of the second...

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Brew Your Bucha offers everything the home brewer needs: from all-in-one home brew kits to individual SCOBYs, bottles, caps, teas and more. Their tagline: “Save Money, Invest In Your Health”. Stats Blogging since: Sep 26, 2017Last Updated: Nov 30, 2018Posting...

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Last night the “Sharks” on ABC’s Shark Tank — a version of  UK’s The Dragon’s Den — invested $350,000 in an online kombucha home brew kit supply company.   The Kombucha Shop (TKS) is the brainchild of Madison, Wisconsin-based Kate...

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