I just finished making a batch of homemade sauerkraut, but it would be fun to delve into kefir to further my experiments! I see lots of options in the store for different varieties--usually milk or a few non-dairy versions. Though I'll have to see if I can find some actually fresh-made locally if I don't get a chance to try making some at home any time soon. I'm definitely all about keeping all those little gut bugs happy. :)