Water Kefir with Yuzu and Mandarin Flavour ORGANIC • no added sugar or sweeteners • probiotics • vegan • gluten-free • 330 ml
Refreshing fermented drink without added sugar, artificial sweeteners, or preservatives. A delicate blend of yuzu and mandarin for everyday functional hydration without guilt. Organic quality, suitable for vegans, gluten-free.
Yuzu & Mandarin Water Kefir – Kult Kefir
Lightly sparkling water kefir with aromatic yuzu from the hills of Japan, balanced with sweet mandarin. Best enjoyed chilled.
In flavour, Kult Kefir resembles a refreshing craft lemonade with a complex taste profile. It is characterised by its sweet and sour balance and effervescence, reminiscent of the gentle bubbles of sparkling wine. This is a drink with significant health benefits, maintaining a lightness without a sticky mouthfeel.
The drink ferments naturally thanks to kefir crystals, which are yeasts and beneficial bacteria. The process typically takes 36–48 hours.
The final drink is pasteurised and contains mainly postbiotics formed during fermentation.
Made in Belgium in small batches. Organic, vegan, gluten-free. Discover other KULT Kefir flavours.
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Why Drink Kult Kefir Beverages?
A functional alternative to regular lemonades and so-called "probiotic drinks". Craft fermentation – not quick production of carbonated water; the drink contains mainly postbiotics.
- Traditional water kefir – standard fermentation, natural effervescence, gentle pasteurisation for stability.
- Postbiotics, not probiotics – no live cultures remain after pasteurisation; the drink contains mainly postbiotics formed during fermentation.
- Lower residual sugar – compared to kombucha and most lemonades, it contains less sugar.
- Flavour without aromas – real juice from organic yuzu (slightly bitter, origin Japan) and organic mandarin; pure profile.
- Craft production – small batches, organic ingredients, hand quality control by a fermentation expert.
- Everyday drinking – light, low-calorie, gentle on the stomach.
Looking for a comparison? Kombucha is often more sour and sweeter. Probiotic lemonade (aka soda) is more like carbonated water with artificially added cultures.
We also wrote an article about it: Summer Refreshment with Benefits: Fermented Lemonades Full of Probiotics, Prebiotics, and Postbiotics
Kult Kefir is a genuinely fermented drink with postbiotics and a pure composition, which is why it costs more and tastes completely different.
Also discover other non-alcoholic beverages in our offer.
Water Kefir – Live Fermentation, Gentle Bubbles
Water kefir is made from kefir crystals (tibicos) – a symbiosis of yeasts and bacteria. During fermentation in a sugar solution, organic acids and natural bubbles are formed.
Kult Kefir ferments in small batches from organic ingredients for almost 2 days and uses freshly pressed juices (e.g., in the Passion Fruit and Hops flavour) without artificial aromas.
During fermentation, most of the cane sugar is converted into organic acids, resulting in a slightly sour taste and low residual sugar.
The drink is bottled in recyclable aluminium cans (emphasis on efficient recycling and protection from light). The brand was founded by bioengineer Mathilde Riga; the product and recipes are managed internally, but the actual production takes place in Belgium in collaboration with a partner brewery in Antwerp.
Why Choose Kult Kefir
Kult Kefir brings a unique water kefir to the market – a lightly sparkling drink created by fermenting organic fruits and herbs. Thanks to traditional mother culture and 48-hour maturation, it offers a natural taste, minimum sugar, and a wide range of organic acids – a perfect alternative to sweetened lemonades.
Behind the brand is a Belgian bioscience engineer who started fermenting at home in the kitchen; today, kefir is produced in Brussels and Wavre, still in small batches to maintain the freshness and authentic aroma of each batch.
Kult Kefir relies on 100% natural ingredients, without artificial additives, and uses freshly pressed juices or herbal teas. The drink is rich in postbiotics, supports healthy digestion, and is packaged in fully recyclable aluminium cans that conserve resources.
100% Organic Quality
Pure composition without artificial additives and refined sugar.
Low Sugar Content
Fermentation converts most of the sugar; only ≈ 1-3 g per 100 ml.
Postbiotic Power
Without live cultures. Organic acids, peptides, and polysaccharides supplement the diet with substances from fermented foods.
Real Ingredients
Freshly pressed juices, no aromas or extracts.
Easy Recycling
Lightweight aluminium cans belong in the regular metal container – aluminium can be recycled repeatedly, even without a return deposit.
Belgian Craft
Small batches of hand-led fermentation in Brussels and Wavre.
Composition
Water kefir (filtered water, water kefir culture, cane sugar* – partially converted by fermentation, lemon concentrate*), yuzu juice (0.7 %)*, mandarin concentrate (0.5 %)*.
*from organic farming
Nutritional Values
| Typical Values | per 100 ml | What does it mean for you? |
|---|---|---|
| Energy | 46 kJ / 10 kcal | Low energy value – suitable for daily refreshment without unnecessary calorie load |
| Fats | <0.5 g | Very low fat content – gentle on digestion and calorie intake |
| Carbohydrates | 2.5 g | Moderate carbohydrate content – derived from natural sources |
| of which sugars | 2.4 g | Only natural sugars – no artificial sweeteners |
| Fibre | 0.5 g | Contains fibre – contributes to supporting healthy digestion |
| Proteins | <0.5 g | Low protein content – a light drink suitable for regular consumption |
| Salt | <0.01 g | Very low sodium content – naturally refreshing |
One can (330 ml) = provides approximately 33 kcal, so you can enjoy it guilt-free at any time of the day – as a functional alternative to sweetened sodas.
Composition Analysis and Functional Benefits
Filtered Water
What it is: Pure water free from impurities and unwanted substances through filtration.
Function: Serves as the basic medium for fermentation and nutrient transfer from other ingredients.
Benefits: Ensures a clean taste of the drink and a safe environment for the growth of kefir culture.
Water Kefir Culture
What it is: A mix of probiotic bacteria and yeasts that naturally ferments sugars.
Function: Converts sugar into organic acids, bubbles, and postbiotics beneficial for gut integrity.
Benefits: Supports gut microflora and natural defences without burdening the stomach.
Cane Sugar
(BIO quality)What it is: Natural fuel for the fermentation process, not for sweetening the final product.
Function: Serves as food for the kefir culture, which almost completely consumes it within 48 hours.
Benefits: Results in a drink with low glycaemic load and minimal residual sugar.
Yuzu Juice (0.7 %)
(origin Japan)What it is: Rare citrus juice cold-pressed from yuzu fruits grown in organic quality.
Function: Adds a unique aroma to the drink with notes of lime, grapefruit, and mandarin with a slight bitterness.
Benefits: High in antioxidants and vitamin C, which supports immunity and vitality.
Mandarin Concentrate
(BIO quality)What it is: Concentrated juice from fresh organic mandarins for natural sweetness.
Function: Balances the acidity of the fermentate and gives the drink a round, fruity finish.
Benefits: A natural source of flavonoids without the need to add refined sugar or aromas.
Postbiotics
(produced by fermentation)What it is: Beneficial metabolites (substances) produced by bacteria during fermentation.
Function: Enriches the drink with valuable organic acids and peptides even after pasteurisation.
Benefits: They are stable and ready for immediate use by the body to support digestion.
What does it mean for you?
Water Kefir with Yuzu & Mandarin flavour offers fresh citrus taste with the benefits of fermented foods. Contains infusion with Japanese yuzu and mandarin from organic farming and is naturally low in sugar content. Gluten-free, vegan, organic certification – an ideal choice for daily refreshment and microbiome support. A simple composition that will please everyone who wants to drink healthily and deliciously.
Warnings and Safety
- Sugar content is the result of natural fermentation.
- Natural cloudiness and sediment are not defects – they are proof of the natural origin of the ingredients.
- Upon opening, there may be a gentle pressure – open carefully (champagne effect).
- Store in a cool place after opening (up to 8 °C) and consume within 3 days.
- Alcohol content <0.1 % – This is a non-alcoholic drink. This level is lower than in common fruit juices or ripe bananas and is considered safe even for drivers and pregnant/nursing women.
FAQ
What exactly does Kult Kefir Yuzu & Mandarin taste like?
The taste is sparkling, sweet-sour and exceptionally refreshing. Yuzu gives the drink a specific, slightly bitter citrus complexity, while mandarin softens it. It acts as a functional lemonade with huge health benefits, which is not overloaded with sugar.
Does the drink contain alcohol and is it safe for drivers?
Yes, it is completely safe. It contains less than 0.1 % alcohol, which is a trace amount produced during any natural fermentation. For comparison: ripe fruit or regular apple juice may contain the same or higher amount of alcohol.
Can I drink Kult Kefir on a low-carb or keto diet?
Yes. Since most of the sugar was "consumed" by the kefir culture during fermentation, one can contains a minimal amount of carbohydrates. It's a great alternative to diet colas, which also brings beneficial postbiotics to the body.
Why do you pasteurise when it's said kefir should be live?
Pasteurisation ensures stability and safety. Without it, the drink in the can would continue to ferment, change flavour, and could deform the can. Even after pasteurisation, the drink retains postbiotics (metabolites), which have a proven positive effect on gut health.
What is the difference between water kefir and kombucha?
Kombucha is fermented with a tea mushroom (SCOBY) and is often more vinegary and sweeter. Water kefir (Kult) is made from tibicos crystals, offering a gentler effervescence and a drier, cleaner flavour profile that pairs well with fruit.
Is the drink suitable for kids?
Yes, Kult Kefir is a great choice for kids as an alternative to overly sweet juices. It contains no artificial sweeteners, flavours, or colours. The Yuzu & Mandarin flavour is very popular with kids for its freshness.
Why is the drink in a can and not in glass?
The can is an ideal packaging for a fermented drink. It 100% protects the contents from light, which could degrade sensitive components, is lighter for transport (lower emissions), and infinitely recyclable. The inner layer is, of course, BPA-free.
Does the drink need to be refrigerated even before opening?
Thanks to pasteurisation, the drink lasts at room temperature. However, to maintain the best flavour quality and refreshing experience, we always recommend storing it chilled. Heat could negatively affect the delicate yuzu flavour profile.
Where does the yuzu in Kult Kefir come from?
We use exclusively organic yuzu directly from Japan. This fruit is renowned for its high quality and specific aroma, which cannot be replaced by regular lemons or limes. The juice is added to the drink in its purest form.
Does the drink contain gluten or lactose?
No. Although the name "kefir" is often associated with milk, water kefir is completely lactose-free. All ingredients are naturally gluten-free, and the drink is suitable for coeliacs and vegans.
What to buy with Yuzu & Mandarin water kefir?
- ✔︎ NoordCode Collagen Bar – cocoa & hazelnuts – a nutritious snack that complements the light kefir and provides long-lasting satiety without sugar.
- ✔︎ PUR Chewing Gum with Xylitol – Bubblegum – freshens breath after a fermented drink, without sugar, aspartame, and artificial additives.
- ✔︎ Golden Latte Mix – Ceylon turmeric & cinnamon – a warming evening drink without sugar, which pairs well with refreshing kefir during the day.
- ✔︎ Swedish Protein Deli Protein Crackers – a savoury low-carb snack that contrasts with the fruity taste of kefir. Ideal for keto or low-carb lifestyle.
Additional parameters
| Category: | Drinks |
|---|---|
| EAN: | 5419980250438 |
| Manufactured by: | Kult, Avenue Alphonse XIII 56, 1180 Bruxelles |
| Country of origin: | Belgium |
| Vhodné pro: | Vegan-organic certification-GMO Free-Sugar Free-Low carb |
| Quantity: | 330 ml |
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KULT Kefir is a brand that unites science and the art of fermentation to create naturally sparkling drinks full of probiotics. They are crafted from traditional water kefir grains, without artificial additives, preservatives or refined sugar, with an emphasis on clean ingredients and authentic taste.
It is built on handmade production and a sustainable approach—from carefully selected ingredients to recyclable packaging. It’s a popular choice for those seeking a healthier and functional alternative to conventional soft drinks.
Renowned fermented beverages thanks to:
- Clean formulation — made from water kefir with no artificial additives, no preservatives and minimal processing; each batch delivers naturally occurring postbiotics as the result of authentic fermentation.
- Carefully selected ingredients — every kefir grain arises from natural processes through which values and culture are passed down from generation to generation; the recipe reflects the authenticity and quality of fermentation.
- A fusion of tradition and innovation — unique recipes draw on kefir-grain cultures handed down through generations while leveraging modern insights from the biosciences to achieve exceptional flavour and function.
Water kefirs
Who’s behind the Kult Kefir brand
The driving force behind Kult Kefir is Mathilde Riga, a passionate Belgian bioengineer who turned her love of the biological sciences into a delicious fermented drink. Her journey began in her own kitchen, where her mother passed on water kefir grains—and from that moment a vision was born. Blending home experiments with scientific expertise, she created a brand that pushes the boundaries of traditional fermentation.
During her experiments, Mathilde realised that everyday ingredients hold remarkable potential — and in October 2020 she “planted the seeds” of KULT. Since then, she has shaped a brand philosophy grounded in innovation, authenticity and the simple purity of ingredients. KULT emerges as a union of science and art, poured into every bottle that tells a story of passion, quality and nature’s wonder.
The Kult Kefir vision
The vision of Kult Kefir is to push the boundaries of taste and wellbeing and to craft uncompromising fermented drinks, where every sip tells a story of passion, innovation and nature’s wonders.
The brand invites you on a journey through fermentation—to experience KULT and discover something extraordinary in every sip.
It fulfils this vision by combining the biological sciences with the art of fermentation, emphasising authentic processes and honouring the mother culture and the cyclical passing on of kefir grains—from generation to generation.
In this way, Kult blends tradition and innovation into drinks that honour their natural origin and quality craftsmanship.
The name — how it came about and what it stands for
The word “culture” has its root in the Indo-European kwel, denoting a cyclical process.
The name KULT was chosen as a tribute to the unique relationship between water kefir and the idea of culture. Just as cultural heritage is passed from generation to generation, water kefir grains are handed on in an endless cycle.
It also points to the mother culture—the beneficial microorganisms that trigger the fermentation of every new batch.
What is a fermented lemonade?
A fermented lemonade is a naturally sparkling drink created when a culture (for example, water kefir grains) converts part of the sugar from water and fruit during fermentation into organic acids and gentle bubbles of carbon dioxide. The result is a refreshing beverage with lower residual sugar and a complex flavour—entirely different from ordinary sweetened sodas.
According to KULT Kefir, “water kefir is more than just lemonade”: it’s a traditional fermented drink made from fresh fruit and natural botanicals. The brand uses only real ingredients (with no artificial flavours or extracts), favours fresh, cold-pressed juices and ferments the kefir for almost two days to achieve an authentic flavour profile—a natural alternative to conventional sodas.
Fair production and wholesome lemonades
Production and ingredients
KULT lemonades are made in Belgium through artisanal production and in small batches—literally in a microbrewery in Brabant, enabling careful quality control and consistent flavour.
The brand adheres to an organic standard under the supervision of BE-BIO-01 (CERTISYS), the official Belgian organic certification recognised across the EU.
Thanks to its local, small-scale approach, KULT is an honest, authentic drink with a focus on ingredient origin and fair processing.
Flavouring relies on real ingredients—no artificial flavours or extracts. Kult works with a variety of herbs, prioritises fresh, cold-pressed juices and allows the kefir to ferment for almost two days to achieve an authentic flavour profile.
In practice this means recipes like ginger & lemon with a share of ginger and lemon juice, as well as no-sugar variants where a longer fermentation consumes all the sugar—with no sweeteners and no shortcuts.
Is the packaging eco-friendly?
Yes. KULT chooses aluminium cans as a deliberately eco-friendly pack: aluminium can be recycled repeatedly without loss of quality, it’s lightweight and stackable (lower transport emissions) and it also protects the drink better from light and oxygen; the interior has a BPA-free liner.
The brand also asks for proper sorting: cans go into the “blue” bin (metals) and—where glass is used—bottles go into the glass container without the cap. KULT explicitly notes that cans are better for the planet than single-use glass.
Kult Kefir brings you pure taste, gentle refreshment, and naturally occurring postbiotics from authentic fermentation — with no artificial flavours and less sugar than ordinary lemonades.
See for yourself.
Who Kult Kefir products are for
People with celiac disease
People with diabetes
Families with children
Vegans
Kult Kefir brand commitments
Quality
Sustainability
Nutritional value
Innovation
Tradition
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