General Category > Yeast and Fermentation

Pressure Kills Yeast?

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davidgzach:
I saved some WLP037 slurry for an Irish Ale I was planning to make next week.  I forgot to release the pressure and when I checked on it yesterday the container was pretty swelled.  I released the pressure and put it back.  It was saved from two batches of Brown Ale so there was a good amount of yeast in there. 

Did I just kill them all by death by pressure? 

Dave

Slowbrew:
Your yeast should be fine.  Make a starter to rouse it and you'll be good to go. 

As far as I know (which isn't much) the yeast shouldn't be able to produce enough pressure actually kill themselves.

Paul

redbeerman:

--- Quote from: Slowbrew on December 14, 2012, 08:42:11 AM ---Your yeast should be fine.  Make a starter to rouse it and you'll be good to go. 

As far as I know (which isn't much) the yeast shouldn't be able to produce enough pressure actually kill themselves.

Paul

--- End quote ---

Making a starter or at least taking a sample and making a small starter to check the viability of the yeast is a good idea.

kramerog:

--- Quote from: davidgzach on December 14, 2012, 06:45:24 AM ---I saved some WLP037 slurry for an Irish Ale I was planning to make next week.  I forgot to release the pressure and when I checked on it yesterday the container was pretty swelled.  I released the pressure and put it back.  It was saved from two batches of Brown Ale so there was a good amount of yeast in there. 

Did I just kill them all by death by pressure? 

Dave

--- End quote ---

Pressure can kill yeast, but not the pressures that brewers encounter.

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