Virgin Premium Dehydrated water kefir grains are a proprietary product of Florida Sun Kefir and are not hand downed grains passed from others. A product of our daily exponential growth specifically for dehydration purposes infused with the necessary nutrients allowing for indefinite storage. Starter grains will rehydrate to 1/4 cup and yield up to 400% in the next dew batches. A natural re-occurring source of Potassium, Magnesium, Iron, variety of enzymes and organic acids, and a range of B vitamins, vitamin K and folic acid and a myriad of nearly 40 strains of the best probiotics