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Old 08-10-2011, 11:58 PM   #1
castillo
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Default Foam layer on top of beer while in secondary fermenter

I had it in primary for 2 weeks then racked to secondary 4 days ago. About a day ago what looks like foam started to form on top of the beer. Anyone know what that is? See photo below.

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Old 08-11-2011, 12:05 AM   #2
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Looks like Krausen but that would be weird for secondary. What was your projected FG and what was the current gravity at secondary?

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Old 08-11-2011, 12:07 AM   #3
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FG should be around 1.015 and when I racked into secondary it was 1.022.

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Old 08-11-2011, 12:12 AM   #4
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you may have stirred up some uneaten sugars and restarted a mini fermentation. If it doesn't go away in a few days then I would be worried. If you look close there is condensation on the inside of the carboy so that means that the liquid is warmer than the class and is transpiring o2 and water vapor, I think. Therefore, IMO, you may have restarted it for a few days.

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Old 08-11-2011, 12:20 AM   #5
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You can also disturb the co2 that is in the beer and get some head forming, or if the temp rises co2 might come out of solution

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Old 08-11-2011, 01:16 AM   #6
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someone told me that it could be a bacterial infection called Pedio.

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Old 08-11-2011, 01:53 AM   #7
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If it goes away in a few days thenit is just a second round of fermentation and not bacteria. +1 to Jmason13 on the water vapour.

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Old 08-11-2011, 01:55 AM   #8
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If you didn't take 2 consequetive grav readings to see if fermentation was finished, the you racked too soon, and it's not uncommon then for krausens to form on top of the secondary...and then for new brewers to start "is my beer infected" threads about it.

You're fine.

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