Recipe: Water Kefir Lemonade with Rosemary & Grapefruit

Living Drinks for a Happy Gut.

Probiotic. Fizzy. Mediterranean with a twist.

Sunny flavor meets living culture: This fizzy lemonade combines the tart freshness of grapefruit with the Mediterranean aroma of rosemary. Naturally fermented with active water kefir – your starter for probiotic summer enjoyment. A drink for hot days that does more than just refresh: Cheers to your Happy Gut! Everything you need, in one set. Discover the Kefir Starter Set.

Water kefir is a naturally fermented drink based on water kefir grains, sugar, and dried fruits. It brings probiotic life to your glass and is the perfect base for homemade, sparkling lemonades. With our Starter Set, you get everything you need to easily get started at home.

New to fermenting?

Then check out our guide to water kefir or get our e-book with everything you need to know about water kefir & co. – including favorite recipes.

Preparation for your drink

For this recipe, you will need active water kefir – preferably freshly fermented. Therefore, allow some lead time and prepare your water kefir at least 24–48 hours before making the sorbet. We show you how in our guide to making water kefir.

Ingredients 

• 200 ml finished water kefir
• 100 ml pear juice or white grape juice
• 5–6 light berries (e.g., yellow raspberries, white currants, or pink gooseberries)
• 1 strip organic grapefruit zest
• 1–2 needles fresh rosemary
• Optional: ½ tsp birch sugar or light honey (for more fizz)

Preparation of the drink

(2nd Fermentation)

1. Gently press the berries (do not crush).
2. In a clean bottle, add:
   • the light berries
   • grapefruit zest
   • rosemary needles
   • optional: sweetener
3. Fill with 200 ml water kefir and 100 ml juice.
4. Seal the jar with our Fermentation Lid.
5. Leave at room temperature for 24–36 hours (depending on taste & temperature).
6. Then seal airtight and place in the refrigerator. Briefly vent ("burp") before opening.
7. Serve
8. Decorate with a fresh rosemary sprig and, if desired, a few light berries.
9. Optional: 1 splash of mineral water for even more freshness.

Enjoy!

No rules. Just cultures

With water kefir, you can ferment endlessly many flavors. Once prepared, combine it according to your taste. Fruits, herbs & spices, as you please.

Why your gut will be happy

• Probiotics: Support your microbiome & strengthen the immune system.
• Grapefruit: Rich in Vitamin C & has antioxidant effects.

• Rosemary: Promotes digestion & is stimulating.

Lieblingsglas Tip: Clever fermentation with a valve

Why our Fermentation Lid with valve is ideal:

During fermentation with water kefir or turmeric bug, natural pressure builds up due to the resulting carbonic acid. Our lid with an integrated valve allows for automatic burping – meaning: excess pressure can escape without you having to open it manually every day. This makes fermentation safer, stress-free, and particularly beginner-friendly.