Storing Kefir Grains:
Place kefir grains in a new batch of sugar water and store in an airtight glass jar. Place grains in a clean jar and cover with sugar water (1 TB of sugar per cup of water). The most important thing is that the grains are fully submerged in the liquid. When storing the grains, the sugar water should be changed out every 1-2 weeks.
You can leave them in this sugary solution for up to 2 months in the fridge. When ready to make it again, separate the grains from the liquid. Then place in fresh sugar water and culture as usual.