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Old 10-01-2012, 08:49 PM   #1
Maegnar
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Default Fermentation process and the sun

Hi there

I've heard a couple of times that the sun is bad for the beer.
But how much sun is bad, exactly?
I have my beer fermenting in the kitchen in a glass carboy and naturally there's a window, where the sun shines at certain period of the day. Now there's no direct sunlight that hits the carboy, but it's not in the dark, either.
Is that something I should worry about and find a darker place for my young beer, or is that not such a big problem?

Thanks!

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Old 10-01-2012, 08:54 PM   #2
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put a shirt over it or paper bag. Beer will become skunky leaving it in sunlight.

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Old 10-01-2012, 08:54 PM   #3
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Find an old shirt and cover the carboy. Sunlight is bad, rather direct or indirect.

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Old 10-01-2012, 09:00 PM   #4
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I have a black T shirt I have dedicated just for this purpose.

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Old 10-01-2012, 09:04 PM   #5
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Not a problem if you like the smell of fermented skunk ass
or Heineken...

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Old 10-01-2012, 09:19 PM   #6
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Any old t-shirt will do but I prefer old Grateful Dead tour shirts, my beer is happier for it

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Old 10-02-2012, 12:37 PM   #7
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I hope it will be okay after just two days in the light. it still has ~3 weeks of time to ferment untill bottling

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Old 10-02-2012, 01:25 PM   #8
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Quote:
Originally Posted by Maegnar View Post
I hope it will be okay after just two days in the light. it still has ~3 weeks of time to ferment untill bottling
Skunking can happen as fast as 15 minutes of sunlight exposure:

http://www.homebrewtalk.com/wiki/index.php/Skunking
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Old 10-03-2012, 08:29 AM   #9
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Oh come on... It's a Belgian Quadruple...
That will be a total waste if it'll go bad...

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Old 10-03-2012, 08:55 AM   #10
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Is it a better bottle... The boxes them come in have instructions on how to cut out a whole in the bottom that u can flip upside down and completely cover the carboy. Otherwise I may not even trust a regular tshirt (go outside on a sunny day and put it on halfway over ur head and stare at the sun)... i'd go with a towel of some sort. I've seen alot of experienced guys buy and use heavy duty cloth bags

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