No, you drink it :biggrin That is the Kefir... The Kefir grains turn milk into kefir, the strained fluid. The kefir can be thin like buttermilk or thick like yogurt. Either way it is still good yummy kefir The amount of grains left in the strainer will multiply, sometimes slowly, sometimes fast. Soon you will have enough to sharewhat do I do with the fluid that strains OUT of the kefir grains? Do I discard that?