You can buy and sell Heirloom yeast here. And you can culture it yourself for a hobby if you will. In fact there are several breeds of yeast out there. All it takes is your imagination what to do with them. Fuck seamonkeys, culture yeast and enjoy it's rewards and sell it also.
Interesting. May give some a try.
It's always something to do as a side hobby, and could be a barter item in a dystopic future?
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