I used my own kefir grains and I wasn't dairy free - I had my own dairy goats at during that time, so I used raw goats milk to make dairy kefir.
I got my kefir grains through a closed group, but there are a couple of good places to get kefir grains from.
A disclaimer first:
**I have no affiliation with either of these sites -I get nothing for mentioning them or if you buy something from them. I only list these to help others find good sources for kefir grains.
With that said, here are two places that I have heard good things about
:
kefirlady.com/www.culturesforhealth.com/Both sites talk about
making kefir, so do some reading while you are there!