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5

Washing yeast with Starsan will kill most of the yeast. Just like it kills off other microbes in your equipment when you sanitize. All stored yeast should really be used within a few weeks. I prefer to just leave the beer on top of the yeast in a mason jar. Washing is not necessary. I decant the spent beer when I am ready to pitch into a new starter ...


3

'So what exactly is 4 - 6 generations? [...] Are all of those considered generation 2?' A generation of yeast is considered as having gone from pitching to post-fermentation collection. So if you ferment a batch with new yeast and collect five jars, those are all first generation. If you pitched every one of those jars into a new batch and collected five ...



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