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Old 07-02-2012, 03:51 AM   #21
weremichael
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Originally Posted by TimpanogosSlim

if it's properly handled (e.g. rehydrated) i don't see how it would be more prone to mutation than liquid yeast.

what was her logic?
She said that the process of drying out the yeast is the culprit.
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Old 07-02-2012, 04:19 AM   #22
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Originally Posted by weremichael View Post
She said that the process of drying out the yeast is the culprit.
You'd think that becoming dry is something that yeast have to deal with in the wild, no?

Color me skeptical that it inherently causes genetic damage.
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Old 07-02-2012, 01:46 PM   #23
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I would just read Revvy's response on this post....
http://www.homebrewtalk.com/f163/dry...liquid-251511/

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Old 07-02-2012, 02:09 PM   #24
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It's certainly plausible that the drying process is mutagenic -- drying is stressful, and mutations increase with stress. But then, getting sealed in a plastic tube or smack-pack and shipped halfway across the country is also stressful.

What I don't get is, why bother? The whole beauty of using high-quality dry yeast is that it's simple, and that you don't need to mess around with culturing, storage, starters, etc etc etc. Unless you really love doing that why not just buy more dry yeast? And if you do love doing that, there are lots more interesting yeasts to do it with than US-05 or Nottingham.

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Old 07-02-2012, 04:13 PM   #25
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Originally Posted by corax View Post
It's certainly plausible that the drying process is mutagenic -- drying is stressful, and mutations increase with stress. But then, getting sealed in a plastic tube or smack-pack and shipped halfway across the country is also stressful.

What I don't get is, why bother? The whole beauty of using high-quality dry yeast is that it's simple, and that you don't need to mess around with culturing, storage, starters, etc etc etc. Unless you really love doing that why not just buy more dry yeast? And if you do love doing that, there are lots more interesting yeasts to do it with than US-05 or Nottingham.
I'm just sayin.

I'm annoyed that the packets of dry are up near $4/ea here, but not as annoyed as i am that smackpacks of wyeast are $8.

I still buy the packets of dry. I've started making slants from my smackpacks, though.
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