I was mostly making an obscure pun on the Reinheitsgebot literally being a purity requirement, of which I can't imagine any she doesn't fail with flying colors.
But, critical scholar in your footsteps that I walk, I have looked into it and was at first thoroughly conflicted, because it's not actually her yeast (by which we hope she isn't infected in the first place but which, incidentally, as an ingredient would be completely fine) that goes into the beer, but actually her lactic acid bacteria which are indeed not part of the four permissible ingredients water, barley, hops and yeast, but I have found several sources naming as an ingredient in e.g. Berliner Weiße and other sour beers that these sources claim do conform with the Reinheitsgebot.
In the end I found that these beers only conform because the lactic acid bacteria are extracted from one of the ingredients, the malt, and re-added at a later stage, so they don't count as an additional ingredient. This is decidely not the case with bacteria from her genitals, so I believe you are entirely correct.
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u/pc42493 May 29 '25
So sorry, CriticalGerman, it is probably in violation of the Reinheitsgebot.