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Old 12-07-2009, 07:20 PM   #1
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Default fermentation temp starting to fall...

So, I have a pale ale (1.048) that started fermenting at 64F using Wyeast 1272 Am Ale II. I brewed it on the 30th, so now that fermentation is starting to slow, and it got quite a bit colder outside, the brewmometer is now reading 59-61, and it's expected to get colder outside. Wyeast says keep Am Ale II between 60-72.

Fermentation was strong, I used a 1 liter starter. I'm not sure if it's at it's FG, I'm not at home to take a reading, but my question is, should I leave it downstairs, or bring it up to the 68-70F upstairs? Is there such a thing as "diacetyl rest" for ales?

thanks.



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Old 12-07-2009, 07:28 PM   #2
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I'd bring it upstairs.



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Old 12-07-2009, 08:32 PM   #3
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I agree. I'd bring it upstairs and get it back up to about 68 degrees. There is such thing as a diacetyl rest with ales, but I don't think you've allowed the temperature to drop far enough to worry to much about that. I'd just bring it back upstairs and give it a couple of days, then take a gravity reading.

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Old 12-07-2009, 08:55 PM   #4
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do you think the yeast will be happy with a 10 degree temp swing?

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Old 12-07-2009, 09:11 PM   #5
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the yeast may stop for a little while but as soon as they warm up they will be fine.

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Old 12-07-2009, 09:23 PM   #6
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Agree. It's also better than the other option, which is to do nothing.

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Old 12-07-2009, 10:08 PM   #7
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+1 bring it upstairs, they need to stay warmer than what you've got them.

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Old 12-08-2009, 05:47 PM   #8
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sounds good, i'll run it upstairs.

thanks guys!



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