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Old 02-07-2008, 11:49 PM   #1
Feb 2008
Posts: 1

sometimes when i am fermenting my ales, i get a white skim on the top of the beer. it almost resembles a waxy coating. does anyone know what this is and how to prevent it. yes, the airlock is installed properly, and the lid is secure. HELP!!!

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Old 02-07-2008, 11:55 PM   #2
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Jul 2007
Omaha, NE
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Your yeast is having a party. It's doing just what it's suppose to do so you don't want to prevent it. No one ever said that fermentation was pretty!
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Old 02-07-2008, 11:57 PM   #3
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Feb 2007
Lugoff, SC
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i had this happen once and i thought it was an infection. i went ahead and bottled it and found that most bottles had the same film at the bottle neck. two weeks later, it had settled out and the beer tasted great. i don't know what it was, maybe yeast residue of some sort, but it went away and the beer turned out fine.
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Old 02-08-2008, 02:07 AM   #4
Professor Frink
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Sep 2006
San Diego, CA
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Ale yeasts are top fermenting, most beers will give you that film, sometimes even after the krausen dies down.
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