Beer line and tap cleaning

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zmad2000

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I have been having some flavor issues with my beer. Since i knew the beer was fermented at the right temp and didnt taste wrong during kegging. I decided to do a thorough beer line cleaning. Last night i put Star San in the lines and this morning when i drained it this is when came out.

Any idea what is it???

Right now my disassembled taps are sitting in BLC.
 

Quaker

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How old we're the lines? Could be beer stone, although I never think of it as that black. Maybe the acidic StarSan reacted with it darkening it.
 

day_trippr

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Definitely nothing like any beer stone I've seen. Looks more like mold...

Cheers!
 
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