At WISE Kombucha, we take great care in crafting each batch with love and precision. We do not mass-produce, pasteurise or strip the life out of our kombucha. We work slowly, in small batches, allowing each brew to develop its own character, acidity, flavour and microbial rhythm.
Our process begins with premium loose-leaf tea, carefully steeped to extract rich full flavours. We use only organic ingredients, including a special blend of sugars and teas designed to nourish your gut microbiome. This thoughtful combination is then brought to life by our unique mother culture, which infuses each brew with its own magic.
We follow the traditional "back slopping" method to naturally lower the pH and introduce healthy Acetic Acid Bacteria (AAB)—the friendly microbes that make kombucha so special. Each batch is further elevated in a second fermentation with fresh fruits, medicinal spices, and the powerful, antihistamine-rich bitter nettle, creating a drink that’s as healthful as it is delicious.
True to our commitment to authenticity, we ferment in small glass jars and serve our kombucha in UV-protected, thick ceramic flip-top bottles. This ensures every bottle is a work of art—packed with natural cultures, bolder flavours, and plenty of yeast to keep things alive and potent.
Unlike most shop-bought kombucha, we never pasteurise, so our brew retains its full spectrum of beneficial bacteria, vitamins, and healthy acids. Every bottle is a living elixir, ready to support your gut health—but remember, it’s full of life, so treat it with care!
WISE Kombucha is made in the most authentic and health-promoting way possible, with a focus on:
Using a blend of organic sugars and premium loose tea leaves
Filtered water with healthy minerals
Live organic SCOBY (Live Mother Culture)
Home-brewing technique in small glass jars and batches
'Wild fermentation' (Non-inoculated process)
Raw & Unfiltered
Healthy dose of acetic acid bacteria
Exclusively using ONLY all organic whole food ingredients and medicinal spices
Crafted with seasonal flavours using only natural sugars from fruits
Addition of superfood/antihistamine bitter nettle to every batch
Served in reusable, ceramic flip-top, UV-protected, thick glass bottles, and with compostable labels
Honest, simple, and 100% natural plant-based goodness
Naturally fermented and not alcohol-free; ABV varies by batch as part of our living, unpasteurised process
Diverse gut microbiome count
Myriad health benefits
Locally made in the UK
Zero waste company values
Our WISE-Booch embodies our dedication to authenticity, sustainability, and delivering a kombucha that not only tastes exceptional but also promotes a vibrant and balanced lifestyle.
Introducing our WISE - Booch!
Keep cool and open with care. Kombucha will keep in the fridge in a sealed container for 4-5 days without much change in flavour. Note that Kombucha never goes off, just continues to mature as it’s still alive but working slowly (many actually enjoy tasting the ever changing flavour process it produces). However if left ‘un-burped’, open with caution as it could explode from its built up carbonation.
At WISE, we take pride in offering a Kombucha experience that stands out in the crowded market. Here's why choosing WISE is a decision you can trust:
Crafted with Care
Our Kombucha is the result of artisanal craftsmanship, lovingly brewed in a transformed London Lab that embraces traditional methods and wild fermentation. Each batch reflects our dedication to creating a product with unparalleled depth and complexity.
Commitment to Quality
We prioritise traditional methods over pasteurisation techniques, ensuring the preservation of the essence and integrity of our Kombucha. By utilising glass containers and employing meticulous back slopping methods, we maintain a consistently high-quality offering that reflects our unwavering commitment to excellence.
Distinctive Flavour & Nutrition
Experience the difference with WISE Kombucha, where superior taste, enhanced nutrition, and a commitment to environmental sustainability converge. Our Kombucha is a testament to our unwavering dedication to providing a product that goes beyond the ordinary.
Honest Fermentation: The Art of the Brew
WISE Kombucha is brewed on site using whole-leaf teas, FairWild nettles, organic ingredients where possible, and the slow Wild IS Earth method. Unlike many commercial kombuchas that are stabilised, filtered, pasteurised or force-carbonated for consistency, our kombucha is left alive and unpasteurised. Each batch is allowed to ferment, shift and express itself naturally. Our first fermentation begins in glass jars, where sweet tea, starter liquid and culture work together over time. From there, flavours are developed using botanicals, fruits, roots, flowers, herbs and spices, before being finished through carefully managed food-safe vessels. Because we work with wild fermentation, no two batches are ever completely identical. Temperature, time, tea, sugar, botanicals and microbial activity all influence the final flavour.
That is part of the beauty.
For the Love of Wild Fermentation: At Wild IS Earth, we embrace the raw intelligence and unpredictability of nature. Rather than stripping the drink back into something flat and uniform, we allow each batch to develop its own living character.This traditional approach creates layers of flavour, acidity, aroma and natural complexity that industrially controlled drinks often cannot replicate. We do not see variation as a flaw. We see it as part of working with a living ferment.
The Wisdom of 'Back-Slopping':To support a healthy and consistent fermentation environment, we use a traditional method known as back-slopping. This means introducing a carefully selected portion of a mature previous batch into fresh sweet tea. This starter liquid helps lower the pH from the beginning, creating the acidic conditions needed for kombucha fermentation and helping the culture establish itself safely. It is one of the ways we support a clean, robust ferment while honouring the continuity of the microbial culture from batch to batch.
Glass Over Metal: Our first fermentation is brewed in glass jars, allowing us to clearly observe the culture as it develops. Glass is non-reactive and well suited to acidic ferments such as kombucha. For later stages of production, we use appropriate food-safe vessels, including stainless steel where suitable, as this is widely used in professional fermentation and beverage production when properly cleaned and sanitised. Our signature amber glass bottles help protect the living brew from light exposure and support natural carbonation once bottled. Every stage of the process is handled with care, cleanliness and respect for the sensitivity of a live ferment.
Natural Alcohol & Living Variation: We do not compete with industrial shelf life. We honour our wild batches and allow them to do their thing. This means we do not remove the naturally occurring alcohol created through fermentation. All real fermentation can produce alcohol, and in live kombucha this may vary from batch to batch and flavour to flavour depending on time, temperature, sugar, tea, botanicals and microbial activity. For us, this is part of the living character of the drink. Each batch carries its own flavour profile, natural rhythm and microbial personality. Where a batch contains alcohol above the legal threshold for non-alcoholic drinks, this is clearly communicated. If ABV is a concern for you, please ask us which flavour is lower in alcohol, or enjoy a small splash mixed with sparkling water, juice or a lower-ABV kombucha rather than a full glass straight.
Our kombucha is alive, naturally fermented and unpasteurised — made to be respected, tasted and understood as a living drink.