Taste the Rainbow
£25.95 5 × 240ml
- One bottle of each of our five flavours
- A flavour guide to find your favourite
- £5 off your first case or subscription
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Organic water kefir
PiQi is organic water kefir (also called kefir water), brewed by hand in small batches in Devon. We ferment triple-filtered water with organic sugar and organic figs using our mother culture, then add organic fruit, juices or herbs for a second ferment. The result is a lightly sparkling kefir water with live kefir cultures, bottled raw and never pasteurised.
Choose from five flavours: Original Fig, Ginger & Lemon, Raspberry, Matcha & Mint and Blue Spirulina & Lemon. Raspberry and Ginger & Lemon won Double Gold at the Great British Food Awards 2026. Pick a single flavour, build your own mixed case, or start with Taste the Rainbow. Delivery is included on every case, and we ship chilled, Monday to Wednesday.
Delivery included
Three ways to enjoy PiQi
Start with a taster, build a case of your favourites, or let us keep your fridge stocked.
Build your case
From £42 6 × 480ml home size
- Mix any of our five flavours
- 480ml home size or 240ml single serve
- Screw cap keeps it sparkling for days
- Best value: 12 × 480ml for £76
Subscribe & save
Save up to 15%
- Your favourite case on repeat
- Skip, swap or pause anytime
- A birthday treat, plus first tastes of new flavours
Shipped chilled, Monday to Wednesday
Live cultures in every bottle
Organic certified and vegan
Raw and never pasteurisedWhat is water kefir?
Water kefir is a lightly sparkling fermented drink. It’s made by fermenting water and sugar with water kefir grains, a living culture of yeasts and bacteria, then flavouring it with fruit, juices or herbs. Unlike milk kefir, it’s dairy-free. Read more about water kefir, or see how it compares with kombucha.
Is kefir water the same as water kefir?
Yes. Kefir water and water kefir are two names for the same drink. You may also see it called tibicos.
How do you drink water kefir?
Serve it well chilled, straight from the fridge or over ice. It’s also a lovely mixer: try our kefir mojito, top up a homemade ginger shot with Ginger & Lemon, or browse more mocktails and recipes.
Where can I buy water kefir in the UK?
Right here: order online and we’ll deliver it chilled to your door. You can also add PiQi to your organic box from Abel & Cole, or find it at Whole Foods Market, Planet Organic, Daylesford and independent farm shops. See all our stockists.
Is PiQi organic and vegan?
Yes. PiQi is certified organic by OF&G, and every flavour is vegan. We use organic sugar, organic figs and organic fruit, and every bottle is raw and never pasteurised.
Is water kefir dairy-free and lactose-free?
Yes. Water kefir is made with water, not milk, so it contains no dairy and no lactose. If you love milk kefir but want to skip the dairy, read our guide to dairy-free kefir.
Do any flavours contain caffeine?
Only Matcha & Mint, which contains caffeine from the matcha. Original Fig, Ginger & Lemon, Raspberry and Blue Spirulina & Lemon are caffeine-free.
Which size should I choose?
Our 480ml home size is made for the fridge and for sharing, and it’s the best value in a case. The 240ml bottle is a single serve, perfect for lunch boxes and on the go. You can mix flavours in either size.
How should I store water kefir?
Keep it in the fridge. Unopened bottles keep for up to 120 days (check the best-before date). Once opened, enjoy within 3–5 days. Our screw caps help keep the sparkle.
How does delivery work?
Delivery is included on every case. We ship chilled, Monday to Wednesday, in insulated packaging, so your kefir arrives fresh. Want to make your own instead? Try our water kefir kit or live water kefir grains.