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Old 02-11-2013, 02:37 PM   #1
Aunt_Ester
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So, my fridge is dead. Basement only gets to 58. And primary fermentation is complete.

I had the crazy idea to put the carboy on my deck, but the highs are 65 and the lows are 35.

Anyone know if large temperature swings will have a negative effect on the processs?
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Old 02-11-2013, 03:04 PM   #2
thadius856
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A water bath would help stabilize the swings a bit.

Have you considered the "Swamp Cooler" type jacket device in the basement with some frozen 2L bottles?
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Old 02-11-2013, 03:07 PM   #3
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If you are at the point where you are starting the lagering, I would leave it in the basement at 58 until you can get a new fridge.

While 58 is too high for lagering, you will have less negative effects (if any at all) leaving it at 58 than letting the temp swing back and forth.

 
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Old 02-11-2013, 03:21 PM   #4
WoodlandBrew
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Here is a plot of what you are asking about:
http://woodlandbrew.blogspot.com/201...g-outside.html

Generally, a five gallon batch of beer in a water bath of 5 gallons will have half the temperature swing of the air temperature.

I put your weather into a spread sheet I use for this sort of thing. Chart is attached.

Looks like you'll have to move it back inside around the 16th.
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Old 02-12-2013, 04:19 AM   #5
Aunt_Ester
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Quote:
Originally Posted by WoodlandBrew
Here is a plot of what you are asking about:
http://woodlandbrew.blogspot.com/201...g-outside.html

Generally, a five gallon batch of beer in a water bath of 5 gallons will have half the temperature swing of the air temperature.

I put your weather into a spread sheet I use for this sort of thing. Chart is attached.

Looks like you'll have to move it back inside around the 16th.
This is phenomenal! Thanks for the help!
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There are actually techniques that some use that are an open fermentation where they basically ferment in a bucket covered in aluminu, alumini, aluemin... tin foil.

 
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