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Old 01-07-2008, 04:35 AM   #1
Dec 2006
Posts: 247

Is it a big deal if my ale ferments at 59F???

thanks to those in the know
Beer Good.

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Old 01-07-2008, 04:46 AM   #2
BrianP's Avatar
Sep 2007
Dexter, MI, Michigan
Posts: 1,151
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Probably too low - it won't hurt it per se, but your yeast will likely go dormant. If you know your yeast type, look it up online and find out the preferred fermentation temperature range. Generally ale yeasts prefer room temperature or slightly lower (like 67-72). Don't go too high above room temp or you'll get some off-flavors.

Same thing goes for when you are bottle conditioning your beer. Keep them at room temp the first week or two. If kept at too low a temp they will go dormant and not process the bottling sugar, resulting in flat beer.

If you haven't already, check out and check out the fermentation section. The author goes into great detail about the science of fermentation, how to do it, as well as how to avoid problems.



Fermenter 1: Best bitter (1)
Fermenter 2: Best bitter (2)
Fermenter 3: APA
Fermenter 4: APA

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Old 01-07-2008, 04:49 AM   #3
Aug 2007
Phoenix, AZ
Posts: 955
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I all depends on the yeast strain!
I used to ferment with Cal ale at 60, but it would underattenuate, at least for me. I bet others have had success with it at low temps. If you are using an English strain it will most likely flocculate, they are pretty sensitive to temperature fluctuation. A good strain to use at lower temps is German ale, it will give you clean, lager like ales, if you don't mind the minimal esters.
Other than that, you have to experiment and see what works well, if it works for someone one way it might not work out the same for you. So give it a try and see what happens.

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Old 01-07-2008, 08:58 PM   #4
Burrowing Owl Brewery
niquejim's Avatar
Jul 2007
Cape Coral Florida
Posts: 2,376
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I've fermented with US-05 down to 52-53 and it worked well, very clean taste. So it will depend on the yeast.

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