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Old 10-08-2012, 05:53 PM   #1
Bricks41
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Default How cold is too cold for WLP001?

Title says it all! It's in day 2 of primary fermentation sitting between 61-63F.

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Old 10-08-2012, 05:57 PM   #2
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You should be fine there. I have heard of people getting that one down into the high 50s and it still ferments.

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Old 10-08-2012, 06:20 PM   #3
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WLP001 / Wyeast 1056 is my house yeast and I to keep the first couple days 62-65F. You are going to be fine.

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Old 10-08-2012, 06:35 PM   #4
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Great thanks! I know the listed optimal temp is higher, but this is my first opportunity to ferment so low thanks to the my garage and cold weather. I'm hoping this 1.095 brew ferments much cleaner than any other batch do date.

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Old 10-08-2012, 06:41 PM   #5
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At 61 - 63 it will ferment but will do so more slowly than 65 to 58. I have a APA using wlp001 at 59 ambient and it is still bubbling slowly at 8 days. So give it time. Should come clean and tasty.

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Old 10-08-2012, 06:55 PM   #6
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Ambient temp in the garage is mid to low 50's, but fermentation heat is keeping it in the low 60's. Last night temp was down to 35 outside, so I wrapped it in a towel - was reading 61 this morning.

Would it be a good idea to bring it in once things slow down and it can't keep it's heat up above 60?

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Old 10-08-2012, 07:01 PM   #7
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Sounds about right...

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Old 10-08-2012, 10:15 PM   #8
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I also have a batch of APA fermenting in my garage with WLP001. Temp has been in the upper 50s all day. It seems to be fermenting fine, maybe a little slower then usual. I love brewing this time of the year!

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Old 10-08-2012, 11:14 PM   #9
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Agreed brew2enjoy!

My thinking and what originally prompted my thought process was given the SG, I dont want to further stress the yeast with too low of a temp, therefore a slower ferment. I don't want to set myself up with a potential stall. I did pitch a big 1G starter and used nutrient and energizer.

At what point (abv) is it a good idea to add more yeast before bottling?

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Old 10-09-2012, 02:32 AM   #10
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Quote:
Originally Posted by Bricks41 View Post
Great thanks! I know the listed optimal temp is higher, but this is my first opportunity to ferment so low thanks to the my garage and cold weather. I'm hoping this 1.095 brew ferments much cleaner than any other batch do date.
with a high gravity beer like you have, you might want to get it a little warmer, at least after the first couple of days of crazy fermentation, to help the yeast finish up. it is possible your fermentation could stall early at the lower temperature. I will generally let it warm up after 4-7 days.
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