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Old 09-28-2013, 04:39 AM   #1
NTXBrauer
 
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I am guilty of this. Even today, I gave my fermenter a gentle swirl, which in my own mind I believe stirs up yeast activity. Of course trying to avoid the introduction of O2 in the process.

Do any of you attempt to initiate yeast activity by putting some motion on your fermentation vessel?
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Old 09-28-2013, 04:50 AM   #2
Nagorg
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Nope...

 
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Old 09-28-2013, 04:56 AM   #3
eltorrente
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I do. But I don't do it because I'm trying to get the yeast to be active - I do it because I like to get the trub off the sides, and yeast floaties or whatever, to drop to the bottom. I like to do that before I move the carboy when I cold crash or before transferring to a keg, because it has time to settle in the bottom.

There's no chance of oxygenation when you do this, since it's all CO2 in the carboy, plus it causes outgassing anyway.

 
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Old 09-28-2013, 05:05 AM   #4
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Depends on the attenuation of the yeast. Sometimes you need to kick the yeast backup to fully finish.

I recently did it with the Ringwood yeast I used in a graff I made.

 
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Old 09-28-2013, 10:55 AM   #5
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This guy doesn't...
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Old 09-28-2013, 02:31 PM   #6
Nohup
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Swirl?

Heck, I pinch off the blow-off tube and shake it like it owes me money.

I've had attenuation problems with my big batches in the past.
Not sure if this helps, but it surely doesn't hurt.

 
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Old 09-28-2013, 02:56 PM   #7
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Nope. I just leave the fermenters alone until they are done.

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Old 09-28-2013, 03:11 PM   #8
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I don't always practice this method, and do it early on during the fermentation period. (2-3 days)

It usually stimulates a little activity from my experience and fortunately has not had any adverse affect on the end product that I can tell.
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Old 09-28-2013, 03:14 PM   #9
Nagorg
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Quote:
Originally Posted by Nohup View Post
Swirl?

Heck, I pinch off the blow-off tube and shake it like it owes me money.

I've had attenuation problems with my big batches in the past.
Not sure if this helps, but it surely doesn't hurt.
Best thing for attenuation is to pitch enough healthy yeast with enough O2.

 
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Old 09-28-2013, 03:14 PM   #10
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only swirl when I'm dry hopping and it looks like some of the hoppy goodness ought to be touching more of the beer.

 
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