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Old 01-15-2007, 05:11 PM   #1
Jan 2007
Posts: 2

I am in the process of my first batch (mirror pond ale clone) We starting foaming and fermenting on the 2nd day. The foam is what concerns me the most. There is a layer that appears to resemble normal beer foam, but there is also a slightly dark layer atop of the regular layer. Does this mean my batch is contaminated? Thanks for any help.

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Old 01-15-2007, 05:26 PM   #2
Fiery Sword
Fiery Sword's Avatar
Oct 2006
Revere, MA, Massachusetts
Posts: 908
Liked 4 Times on 3 Posts

That layer if crud is called 'krausen'. it is a normal part of your primary fermentation. It will be time to rack the beer to a clearing tank when the krausen falls out and fermentation slows down. This takes a weekish, depending on lots of things. Did you ake an initial gravity reading?

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Old 01-15-2007, 06:17 PM   #3
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Aug 2006
People's Republic of Cambridge
Posts: 3,316
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Not to worry, sounds perfectly normal to me.
And now we go AG!

On Tap: Nadda
Primary: Nadda
Planning: Extra Special Bitter

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Old 01-15-2007, 06:22 PM   #4
May 2006
Plymouth, UK
Posts: 102

I remember when I first saw the brown deposits on top of the krausen, and thought the beer had been contaminated. I came to these forums and made a thread similar to this one. The paranoia will soon disappear, I think it's a lot harder to mess a batch up than you think (All mine have been great so far) when you first start out. My lastest batch has tons of the stuff, I embrace it RDWHAHB
Next Up: More Strawberry Wine!
Primary: Strawberry Wine
Mini Primary: Empty
Secondary: IPA
Bottled: Cheesefood's Caramel Cream Ale Almost gone :( t'were delicious!
Mysteriously Disappeared: Some Random Dark Ale - Cooper's Bavarian Lager - Mexican Cerveza - Black Sheep Export Bitter - Edwort's Apfelwein

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