Originally Posted by csmurdock
So I just bottled a chocolate milk stout and tasted some and it has a slight sour (astringent maybe?) taste. It sat on the cocoa nibs for two and a half weeks in secondary and now has this flavor. I'm wondering if anyone has used cocoa nibs before and knows if this will age out or not?
sour like "green apple" ?? or sour like vinegar?? it could be just young green beer, but if you didn't sanitize the cocoa nibs well enough you could have an infection (the sour vinegar taste)