alcohol tolerance

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  1. H

    Help me.

    I know 25% alcohol tolerance for wlp 099. However, it brewed an Imperial Stout of 20 liters, which was an og 1.138. Ten days later the FG was 1.082. Of course, I made a four-liter starter. Is the fermentation speed slow at 099? I plan to add one more 099 . What do you think?
  2. Ouroboros

    Genetics of yeast flavor, flocculation, etc...

    Anyone know if people are looking into the genetic factors underlying things like alcohol tolerance, flocculation, and flavor profile? I imagine a lot of these characteristics are polygenetic (not to mention subjective), but I'm not sure. I doubt the NIH is awarding fat grants to study that...