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Home Brew Forums > Home Brewing Beer > General Techniques > Butter infection?
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Old 04-27-2010, 02:36 AM   #1
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Default Butter infection?

I know Diacytl causes butter flavors...but I have a beer that was great about a week ago, and now it tastes like nasty fake butter! WTF! is this some kind of infection?

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Old 04-27-2010, 02:49 AM   #2
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If diacetyl shows up in a previously good beer, and gets worse, thats usually a sign of a lacto infection.

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Old 04-27-2010, 02:54 AM   #3
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Originally Posted by Edcculus View Post
If diacetyl shows up in a previously good beer, and gets worse, thats usually a sign of a lacto infection.
I agree, except I thought it may be a pedio infection. Pedio is the one that I think most commonly manifests as butter flavor, but I could be wrong.
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Old 04-27-2010, 02:55 AM   #4
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grrr! ****... bleach? time to clean the keggerator, and PBW all the lines....ugh. very inconvenient.

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Old 04-27-2010, 02:56 AM   #5
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Youre right Yoop. I got my beer spoilage bacteria confused! I know some lacto can throw a good bit of diacetyl, but you would also notice a distinct sourness.

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Old 04-27-2010, 03:01 AM   #6
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i like sour... dont like butter!

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Old 04-27-2010, 03:11 AM   #7
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ok, clean bleach, replace all my lines? sound good?

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Old 04-27-2010, 03:16 AM   #8
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Maybe its just me, but I don't like bleach. Its smelly, ruins my clothes and doesn't sit well with my fiancee who has asthma. I think 2 good HOT PBW soaks followed by Starsan, or sanitizer of your choice will suffice. Replacing your lines might not be a bad idea.

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Old 04-27-2010, 03:17 AM   #9
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why couldn't it be a tasty infection like lacto, acetobactor or miley cyrus!!

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Old 04-27-2010, 04:24 PM   #10
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If the batch is bottled, you are stuck with it. If the batch is kegged, you can make a nice US-05 starter and ferment out most of it.

Or, you can just pour it on your popcorn.

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