Carbonation and yest
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SDCraftBeer
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Could you elaborate on your question?
WoodlandBrew
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Are you asking about the effect of the additional carbon dioxide in solution that is present in carbonated beer compared to fermenting beer? It's normally 2-3 volumes for carbonating compared to the one volume during fermentation. I wouldn't expect this to effect the yeast much but this is not something I have researched significantly.
TimelessCynic
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I think only when it gets higher in pressure. I added enough sugar to my keg to produce 60 psi at room temp. Only got up to 48 or so. I think i didnt reach my target because the pressure inhibited the yeasts ability to work. Not sure though. I'm not a scientist.
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TimelessCynic
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Your secondary doesn't have a pressure relief?
I carbonate inside keg. Its a serving vessel and a secondary i guess. Built a spunding valve so even if i accidentally add too much sugar i can still bleed off the excess pressure. Or if i transfer early enough into keg i don't even need to add sugar. Just takes a few gravity points to carbonate your beer.
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TimelessCynic
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Your secondary doesn't have a pressure relief?
I carbonate inside keg. Its a serving vessel and a secondary i guess. Built a spunding valve so even if i accidentally add too much sugar i can still bleed off the excess pressure. Or if i transfer early enough into keg i don't even need to add sugar. You just need a few points of gravity to carbonate your beer.
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CO2 does not have any effect on yeast, no. Yeast can operate (but not reproduce) without oxygen, CO2 is a byproduct of fermentation but it doesn't really bother the yeast. What will kill yeast is the alcohol in your beer.
