I started with a small store - bought container of the best organic yogurt I could find, and fairly recently used a half - cup container of organic kefir. (elanaspantry.com)
I like to freeze it in 4 cup containers for later. (memeinge.com)
Farro takes awhile to cook, so the last time I made a huge batch of it and froze it in 2 cup containers in the fridge. (cookingwithmichele.com)