Before use, reactive the grains according to packet instructions. Once reconstituted, 5g of dried water kefir grains turn to 30g of fresh water kefir grains to prepare 600ml of water kefir.

Store kefir grains in water/sugar solution in the fridge:
Pour water into the smaller jar and add a spoon or two of sugar, stir until dissolved. Use fresh non-chlorinated and non filtered water to avoid damaging the grains. You can leave them in this sugary solution for up to 2 months in the fridge. Leave the lid slightly open to enable airflow. You can store milk or water kefir grains this way.