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Old 12-31-2007, 03:49 PM   #1
TWilson
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Default Thin white film floating in secondary?

What are your thoughts? The best way to describe it is that it kind of looks like soap scum/residue that would float on the surface of bath water. It doesn't appear to be fuzzy/hairy looking. It is pretty thin and patchy, and doesn't cover the entire surface, maybe about 65-75%. I can't detect any off odors. The batch is a BB Pale Ale, done according to the directions. I use Oxy-Clean Free and Star San. It spent 2 weeks in primary, and has been in secondary for about 4 weeks. I won't get a chance to bottle it until this weekend at the earliest. I can try to post a pic later this evening. Thanks in advance.

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Old 12-31-2007, 03:50 PM   #2
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Most likely nothing to worry about. Even in the secondary, there will be residual CO2 production and that is most likely the thin film you're seeing.

Keep going and your beer will be fine.

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Old 01-01-2008, 12:24 AM   #3
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Have you ever seen a similar film floating on a glass of beer? If so it's probably just very fine CO2 bubbles.

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Old 01-01-2008, 01:27 AM   #4
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The only time that I've seen it is on some Belgian brews, such as Lambic, where it is supposed to have the bacterial infection. As suggested, the CO2 will more than likely kill anything, except anaerobic organisms.

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Old 01-01-2008, 03:02 AM   #5
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Thanks for the replies. I can't get my card reader to work right now, but I will try again later. The pics aren't that great anyway. As for having seen it before, I have never noticed anything like it before. Again, it is not hairy/fuzzy. It doesn't look like belgian lace floating in a glass of beer, however there are some CO2 bubble clusters still on the surface. The best way that I can describe it is that it kind of looks like soap scum. Imagine what the water in your sink looks like after shaving with shaving soap. There is a thin layer of residue floating on top. I will try to get some better pics tomorrow and get them uploaded so you can see. My head is starting to get a little fuzzy from the various IPAs that I am enjoying tonight. I should get a clearer pic tomorrow. Oh, Hoppy New Year to you guys.

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Old 01-01-2008, 03:44 AM   #6
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I have the same thing going on with my vcca. I was a little concerned but I will see how it turns out. Ive had it sitting in secondary for about a month now.

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Old 01-01-2008, 03:51 AM   #7
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I've gotten that film several times. It looks pretty nasty, especially if some bubbles get caught underneath it. It will break up like ice on a lake if you stick a racking can through it. Nothing to worry about. All the batches I've had have turned out fine.

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Old 11-03-2009, 03:01 PM   #8
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I just bottled a stout that had the ice-on-a-lake looking stuff on it. I tasted the beer and a chunk of the ice; beer tasted fine and the ice didn't taste like anything. I went ahead with bottling; we'll see what it's like in a few weeks.

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Old 11-03-2009, 03:05 PM   #9
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I've had this film a couple of times. Beer was fine. Carry on.

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Old 11-03-2009, 04:54 PM   #10
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What is it? Yeast? A tasteless infection?

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