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Old 07-21-2011, 05:38 PM   #1
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Default Damn heat wave... what off flavors to expect?

I'm making Denny's Wry Smile. The yeast is rated for 60-70 degrees. I brewed this yesterday and pitched around 5pm. It was 80 degrees at pitching, and I put into a swamp cooler an hour or two later which brought it down to about 78. I then added some ice and brought it down to about 72. I'm guessing that lasted for a few hours over night. This morning was a blowoff and back up to 78. I threw in a bunch of ice again and headed off to work.

Going to get home an baby sit it, but is the damage already done? If so, what kind of off-flavors should I expect and will they (hopefully) fade over time? What's the critical time window to ensure temperature control - first few days? I know it should always be controlled, but there's only so much I can do with what I have.

FWIW - I pitched a 2L starter from a stir plate (and that blew while on the plate!) so it's pretty healthy / active yeast, even though they're probably pretty sweaty right now...
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Old 07-21-2011, 05:59 PM   #2
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It isn't an all-or-nothing situation - below the threshold is good, about not so much, back under and your good again. If you exceed the threshold 50% of the time during fermentation, your brew will have 50% of the off flavors than if it exceeded it the entire fermentation. Leave the brew in the primary a week longer and the yeasties will probably clean almost all of it up for you.

BTW - I live in Dallas (where we are on our 20th day of 100 degrres or more) and use the swamp cooler method, and keep my house at 79 degrees. I found freezing gallon jugs of water keeps the temps lower longer while I am asleep and at work.
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Old 07-21-2011, 06:19 PM   #3
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Thanks for the tip. These small water bottles just aren't cutting it.
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Old 07-22-2011, 01:30 AM   #4
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What heat wave? It was 41 degrees when I woke up this morning.
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Old 07-22-2011, 02:15 AM   #5
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Where you at tasty? Laska?
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Old 07-22-2011, 02:37 AM   #6
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Frozen two liter coke bottles. Two in the morning and two before bed keeps my swamp cooler below 68 in my garage even in 100 heat.
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Old 07-22-2011, 02:39 AM   #7
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Where you at tasty? Laska?
Idaho.
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Old 07-22-2011, 04:31 AM   #8
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Nice.
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Old 07-22-2011, 06:43 AM   #9
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This heat wave is killing me! It made it all the way up to 73 degrees today at my house! I don't even have an air conditioner!
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Old 07-22-2011, 01:32 PM   #10
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I know my first ever recipe (Rye?? Rye Not! Blond Ale) was fermented during a week where my A/C died..and being away for the weekend my swamp cooler really did not do the job, I can only guess it fermented in the 80s somewhere..and the beer tastes like a shoe..I plugged through one case, and am sitting on the second for a while, to see if the off flavors fade, or until such time as I a desperate enough to drink it...
The plus side is a friends wife made him get rid of his wine chiller that had been taking up garage space..that coupled with a temp controller, and swamp coolers are now a thing of the past.
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