bluewaterbrewer
Member
I have a stout that has been doing great for about 5 or 6 days now. The other day I took a sample and THOUGHT I sanitized properly, but now I have accrued a blueish bubbly foam over the top the top. What is this? Did I spoil it? Can I rack it and save it? I have five more gallons of the same stout (ten gallon batch) and it looks fine. Any help i'd appreciate. Thanks!