Ginger Water Crystals – Probiotic Water Kefir Grains

Water kefir grains with a fiery ginger twist

Ginger Water Crystals are live water kefir grains grown in a special ginger-rich mixture, producing a naturally fermented probiotic ginger ale that's crisp, lightly fizzy, and packed with beneficial bacteria and yeasts.

The grains are the same living culture as regular water kefir grains — small, translucent, and gelatinous — but with a pronounced ginger flavour from how they're cultivated. Each order contains 40g of live grains, enough to brew 1 litre of probiotic ginger soda at home. Full brewing instructions included.

Buying a gift, or not ready to start straight away? See our dehydrated water kefir grains instead.

What you'll need

• Non-metal strainer
• Wooden or plastic spoon
• 1 litre (or larger) glass jar with lid
• Bottles for secondary fermentation and storage

Ingredients (per litre)

• 40g ginger water kefir grains
• 65–70g sugar (do not substitute honey — its antimicrobial properties can damage live kefir grains)
• 3 tablespoons organic raisins or other unsulphured dried fruit
• ½ organic lemon
• 1 thin slice of fresh ginger, peeled
• 750ml–1L filtered, chlorine-free water

How to brew

1. Dissolve the sugar into the water.
2. Add the grains, raisins, lemon and ginger to the sugar water in your glass jar.
3. Cover the jar (do not seal it) and ferment at room temperature for 24–72 hours — warmer homes ferment faster.
4. Strain out the grains, raisins, lemon and ginger, then bottle the liquid.
5. Leave the sealed bottles at room temperature for a further 24–48 hours to build natural carbonation.
6. Refrigerate and serve cold over ice.

About water kefir

Water kefir is a naturally carbonated, probiotic-rich fermented drink. The live bacteria and yeasts in the grains — including Lactobacillus hilgardii — ferment the sugar water to produce a lightly tart, gut-friendly beverage. With regular feeding, the grains grow and reproduce indefinitely, making this a genuinely sustainable culture to keep at home.

Water kefir is highly versatile — try swapping fresh ginger for mint, cardamom or anise, or use dried figs or cherries in place of raisins for different flavour profiles.