I skimmed the thread and couldn't see anything super flaky like this. It was an absurdly hoppy (ie expensive) American IPA. We were experimenting with late extract addition and didn't notice until afterward that one of our DME bags was torn open--probably the source of the infection. Anybody know what this is?
It tasted pretty delicious anyway so we went ahead and bottled it!
Edit: there was a LOT of this stuff accumulating in the blow-off tube, nothing really made it to the bucket at the end, though. There wasn't any growth I could notice after fermentation had subsided. Never racked to secondary since there was so much unidentified growth; just tasted some on a whim and decided to bottle.