Kefir Soda Recipe
International · Beverage · 10 min total
A fizzy, probiotic-rich beverage made by fermenting water kefir grains with sugar and flavorings. This recipe yields a lightly sweet, effervescent soda that can be flavored with fruit or herbs.
10
min prep
min prep
8
servings
servings
30
kcal/serving
kcal/serving
Ingredients
- 1/2 cup active water kefir grains
- 1/4 cup organic cane sugar
- 8 cups filtered water (non-chlorinated)
- 1/4 cup dried fruit (e.g., figs, apricots) or 1/2 cup fresh fruit (optional for flavor)
- 1 lemon slice (optional for flavor)
Instructions
- In a large glass jar, dissolve the sugar in 1 cup of warm filtered water. Add the remaining 7 cups of cool filtered water and stir.
- Add the water kefir grains and any optional flavorings (dried fruit, lemon slice). Stir gently.
- Cover the jar with a cloth or coffee filter and secure with a rubber band. Let it ferment at room temperature (70-75°F) for 24-48 hours, until slightly fizzy and tangy.
- Taste the kefir water; it should be less sweet and have a mild, yeasty flavor. If desired, ferment longer for more fizz.
- Strain out the kefir grains using a plastic or stainless steel strainer (avoid metal reactivity). Reserve the grains for your next batch.
- Pour the liquid into airtight bottles (leave 1 inch headspace). Seal and let sit at room temperature for 12-24 hours for carbonation, then refrigerate.
- Serve chilled. The soda will keep in the refrigerator for up to 2 weeks.
Tips
- Do not use metal utensils or containers, as they can react with the kefir grains.
- For fruit-flavored soda, add 1/4 cup fruit juice or puree during the second fermentation (after straining grains).
- If you don't have water kefir grains, you can use a powdered starter culture, following package instructions.
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