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'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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It's probably as safe as anything in a sanitary environment, though if I'm understanding you correctly it means another, however small, potential window of exposure to dangerous microbes since you're racking twice. I've reused yeast a few times to no ill effect, but a lot of literature advises against doing it more than that. It also sounds like more work ...


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The gas is formed by regular anaerobic yeast fermentation. When you put a lot of yeast with a small amount of food (the residual sugars in your beer) the yeast cells are better able to consume that food than they would be otherwise. In addition to the danger of the jar exploding, excess pressure is also bad for the yeast. I use canning jars that have a flat ...


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Most likely the yeast had been very slowly fermenting/respirating in the fridge, I always crack open the lid every few days on any yeast I am storing. Cooling the yeast doesn't fully stop their metabolism, but slows it greatly unless you are dropping them into a -80C lab freezer or Liquid Nitrogen -170C. After 4 weeks your yeast is likely fine, it would ...


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It sounds like you are doing nothing wrong. Most likely the yeast had been very slowly fermenting/respirating in the fridge, I always crack open the lid every few days on any yeast I am storing. Cooling the yeast doesn't fully stop their metabolism, but slows it greatly unless you are dropping them into a -80C lab freezer or Liquid Nitrogen -170C. after 4 ...


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The ferm times were about the same. What was different was the taste. An UNBELIEVABLE difference. It really doesn't taste like the same beer. You really wouldn't know it was the same beer in fact. I preferred the 04, but many did prefer the 05. Anyway, I use the brews now to show folks the difference yeast makes as most don't really consider it as important ...



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