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Old 08-18-2012, 03:29 AM   #1
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Default fermenting a little hot

Pitched London ESB a few nights a ago to an imperial IPA recipe.... Noticed it was fermenting above 78.. finally got down to 76-77... I'm worried about the beer not turning out ok



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Old 08-18-2012, 08:29 AM   #2
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You may have higher level of fusel alcohols and diacetyl, I would keep temps. down as possible until last few days of fermentation. They raise temperature to 70 so yeast can clean by themself (including re-absorption of diacetyl).
Did you tried simple temperature control like swam cooler?



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Old 08-18-2012, 01:46 PM   #3
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I brew in my garage and don't use a swamp cooler.. I know I should really invest in a fermentation chamber just haven't had the time or the money to do so.... I've read that people put a wet towel around the carboy... I think it might be too late? Today will be the 5th day of fermenting

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Old 08-18-2012, 02:02 PM   #4
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>>You may have higher level of fusel alcohols and diacetyl, I would keep temps. down as possible until last few days of fermentation. They raise temperature to 70 so yeast can clean by themself (including re-absorption of diacetyl).


I don't think Diacetyl will be a problem, but Acetaldehyde might.
I think the yeast may reabsorb some Acetaldehyde.
You are stuck with any Fusel alcohol.


>>I brew in my garage and don't use a swamp cooler.. I know I should really invest in a fermentation chamber just haven't had the time or the money to do so.... I've read that people put a wet towel around the carboy... I think it might be too late? Today will be the 5th day of fermenting


I made a swamp cooler, inspired by Yoopers
http://www.homebrewtalk.com/f14/lager-yeast-s-uvarum-temperatures-245888/

You wait until these types of coolers are on sale (I got a 110 can for $44 shipped).
Its a @#$%^ inch and a half not deep enough due to the slant of the wheel well housing, so I bought a 8'x2'x1" styrofoam insulation slab, and madea DIY cover that can house a pale. If you use a car boy, all you need to do is make a simple styrofoam cover like Yooper did.
I also use this cooler to hold ice water which I pump throgh my immersion chiller to cool the wort that last 15 degrees in summer.

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Old 08-18-2012, 02:06 PM   #5
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Even 70F is too hot, IMO... I'd shoot for 66-68F max.

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Old 08-18-2012, 02:26 PM   #6
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Quote:
Originally Posted by Brulosopher View Post
Even 70F is too hot, IMO... I'd shoot for 66-68F max.
I agree with this for any yeast. It is probably especially true for any English strain.
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Old 08-18-2012, 02:34 PM   #7
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So general conscensus is that my brew is gonna be hard to drink?

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Old 08-18-2012, 02:36 PM   #8
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Quote:
Originally Posted by BOYDBrew View Post
I brew in my garage and don't use a swamp cooler.. I know I should really invest in a fermentation chamber just haven't had the time or the money to do so.... I've read that people put a wet towel around the carboy... I think it might be too late? Today will be the 5th day of fermenting
A wet towel and a swamp cooler won't cut it if you are in a hot humid garage...check craigslist for a free fridge or freezer, and search "ebay temp controller".
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Old 08-18-2012, 02:51 PM   #9
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Quote:
Originally Posted by BOYDBrew
So general conscensus is that my brew is gonna be hard to drink?
It will certainly be chock full of fusel alcohols, which are hot. But you could still drink it it. Just don't go nuts... fusel make for terrible hangovers!
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Old 08-18-2012, 02:56 PM   #10
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Quote:
Originally Posted by Brulosopher

It will certainly be chock full of fusel alcohols, which are hot. But you could still drink it it. Just don't go nuts... fusel make for terrible hangovers!
It will be an imperial so I plan on it giving me a hangover!


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