The water kefir and kombucha duo: two sparkling drinks from one order
At a glance
The Natural Probio duo pairs 30 g of live water kefir grains with a kombucha SCOBY in its starting liquid. You get two sparkling homemade drinks with quite different personalities: a fruity water kefir ready the next day, and a tea-based kombucha with more depth, ready in about a week. Two guides are included, and both cultures are covered by the Natural Probio guarantee.
- In the parcel
- Water kefir 30 g and a SCOBY
- Drinks
- 2 sparkling drinks
- Guides
- 2 included
- Guarantee
- Lifetime, on activity
A lot of people arrive at this site having tried kombucha in a café and wondering whether to make it themselves, only to discover water kefir along the way. Others start with water kefir and come back a month later for a SCOBY. The duo exists for anyone who suspects they will end up with both: one order, one delivery, two guides, and a fridge that always has something interesting in it.
What the duo contains
- Live water kefir grains, 30 gIn their own liquid, in a sealed pouch: enough for about a litre of sparkling drink a day.
- A kombucha SCOBY in its starting liquidThe live kombucha culture, ready to transform your first jar of sweet tea.
- Two step-by-step guidesOne for each drink, with the first steps and the signs that tell you all is well.
- Exclusive recipesThe booklet's QR code opens our library of recipes and flavour ideas for both drinks.
- The Natural Probio guaranteeLifetime cover on the activity of your cultures, plus satisfaction or your money back.
Two drinks, two personalities
Both are homemade, both are naturally sparkling, and that is roughly where the resemblance ends. Which is exactly the point of the duo: you are not buying the same drink twice, you are covering two different moods.
| Drink | Taste | Ready in | Lovely for |
|---|---|---|---|
| Water kefir | Light, fruity, like a homemade lemonade | The next day | Everyday drinking, lunch, sunny afternoons |
| Kombucha | Sparkling tea, rounder, pleasantly sharp | About a week | Tea lovers, evenings, serving at dinner |
One thing worth knowing: kombucha starts from tea, so it contains some caffeine (theine), whereas water kefir does not. For a closer look at the two, read water kefir or kombucha.
A daily drink and a weekly one
Water kefir runs on a daily loop: set it up, strain it tomorrow, start again. Kombucha takes its time in a larger jar and is ready roughly once a week. The two rhythms fit together surprisingly well. Water kefir keeps the fridge topped up day to day, while kombucha brings a bottle with a completely different character every week or so.
Customers often tell us the duo hardly takes more time than a single drink. The water kefir routine is five minutes, the kombucha one happens about once a week, and the two guides take you through each step.
Who the duo suits
- The undecided, who would rather try both than spend weeks choosing.
- Couples and house-shares where one person likes fruit and the other likes tea.
- People who entertain and enjoy offering two homemade drinks when guests arrive.
- Anyone hunting for a thoughtful present: the duo is one of our most popular gifts. See our gift ideas.
Prefer a creamy breakfast kefir to a sparkling tea? The kefir duo may suit you better. Want everything? The complete kit brings all three cultures together.
What duo customers say
"I recently purchased the culture kits for both water kefir and kombucha, and I couldn't be happier! The package arrived right on time […]. Both cultures worked perfectly on the very first try, and the drinks taste absolutely delicious."
Elisa, June 2026Trustpilot review"I ordered kombucha SCOBY and water kefir grains and when the package arrived, a part of the kefir was missing. Client service was very quick at sending me the missing item. Both grains and SCOBY are producing great drinks."
Juliette M., June 2026Trustpilot reviewQuestions about the duo
Can I start both drinks on the same day?
Yes. Both cultures are ready to go on arrival, each with its own guide. If you would rather take it one step at a time, start the water kefir first and keep the SCOBY in the fridge for a few days, as the guide explains.
How much space does it take?
One jar for the water kefir, one for the kombucha and a few bottles in the fridge. A corner of the worktop is plenty.
Are both cultures guaranteed?
Yes. The grains and the SCOBY are guaranteed alive on arrival, and the activity of your cultures has a lifetime guarantee in normal conditions: if they stay inactive, we replace them at no cost.
Can the duo be delivered to the UK?
Yes, like the rest of the range. It is dispatched within 24 to 48 working hours with tracking, and the delivery time and charges for your address appear at checkout. Delivery and guarantee.
The water kefir and kombucha duo
Two live cultures, two guides and two very different sparkling drinks, all from a single order.
- Water kefir grains 30 g and a SCOBY in its liquid
- Two step-by-step guides and exclusive recipes
- Dispatched in 24 to 48 h, tracked
- Lifetime guarantee on activity
Grains from time-honoured methods, unique and resilientDispatched within 24 to 48 hours, trackedLifetime guarantee on your grains' activityOver 20,000 customers worldwide
