I know people who've bought their grains from Culture for Health, expensive to say the least imo. They sell kombucha starter kits for $25 which is crazy expensive as people give that stuff away, they want to unload it as it propagates & stockpiles so fast. Imo, just network on local Meetup.com, fermentation & Weston A Price boards locally & find some for free. Then pass it along to others for free too...
"Science is not belief but the will to find out." ~ Anonymous
"Culture of the mind must be subservient to the heart." ~ Gandhi
"The flogging will continue until morale improves." ~ Unknown