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Old 06-13-2007, 02:37 AM   #1
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Default Beer slicks?

I've noticed on a couple of my brews what looks like an oil slick. Very small
amounts on the surface after a pour. I haven't noticed any off flavors associated with this but I'm curious if this is common. Could it be lube or something seeping
off of an O-ring on the better bottles?

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Old 06-13-2007, 02:41 AM   #2
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I noticed this on the top of my Kosch in the secondary before I bottled. Best guess I had is that it is oils from the hops.

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Old 06-13-2007, 02:46 AM   #3
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You both sanitizing with StarSan? I notice beer in the carboy has a rainbow slick on top after I've sanitized with StarSan.

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Old 06-13-2007, 02:47 AM   #4
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Likely fuseol alcohol. Looks like swamp oil if you know what that looks like... It's a byproduct of a hot fermentation. It leads a hot alcohol character to the taste. Without fermentation temp control you will most likely have it to some degree.

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Old 06-13-2007, 02:49 AM   #5
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Quote:
Originally Posted by Orpheus
You both sanitizing with StarSan? I notice beer in the carboy has a rainbow slick on top after I've sanitized with StarSan.
Iodophor here.

Quote:
Originally Posted by chillHayze
Likely fuseol alcohol. Looks like swamp oil if you know what that looks like... It's a byproduct of a hot fermentation. It leads a hot alcohol character to the taste. Without fermentation temp control you will most likely have it to some degree.
I use an old dorm fridge with temp. control. I was in the mid to low 60s for the primary, 40s for secondary.
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Old 06-13-2007, 02:49 AM   #6
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need more information.

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http://www.homebrewtalk.com/f39/denn...9/#post1766281

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Old 06-13-2007, 02:52 AM   #7
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I feel like a dope. It's got to be the Star San.
When I bottle there's still some leftover bubbles. In this instance, I just bottled a batch and was tasting the last half filled bottle and noticed the slick. It's got to be the Star San. I feel bett...I mean cleaner already!

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Old 06-13-2007, 02:54 AM   #8
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I thought you used iodophor?

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Old 06-13-2007, 03:01 AM   #9
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Quote:
Originally Posted by chillHayze
I thought you used iodophor?
That was me, oily-ness on top of Kolsch. It is really no problem, could have been a temperature thing...we can just say that and call it a night. I am drinking one now, tastes great so no worries.
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Old 06-13-2007, 03:01 AM   #10
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I'm a Star San convert! This stuff is great. Especially since you can use it two weeks later. I usually add an extra 1/2oz anyway just to be safe.

Come to think of it, this African Amber batch was dry hopped. The slick could be from hop oils, no?

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