I make organic goat milk kefir every day. 
The grains increase as they are very lively and healthy. 
Our kefir is like champagne - fizzy and sharp. 
Also great in dressings and double fermented fruit smoothies 
You can use these grains with cows milk. 
I always have spare to offer to others. 
You only need about a tablespoon to get started.  
Come and get yours!