Quote Originally Posted by Viva Prat Vegas View Post
It is "a small bacterial growth" caused by exposure to airspace after fermentation

Google this
"There’s A White Scum On Top Of My Homemade Wine"
Oooh, so it's definitely fermented, then? Excellent.

By the way, wasn't "There’s A White Scum On Top Of My Homemade Wine" a Police lyric?