i don't really know where to get water kefir and don't want to make it, is it possible to make this
with komucha instead?
I found that
coffee komucha brews more quickly, so test it often and be ready to start a second ferment or put in the refrigerator to stop fermentation after a few days.
Good sources of probiotics include sauerkraut, kefir, and
komucha tea.