I think the lid was tight, and we did not dry hop. Some told me it could be because of Irish mosh? (too much of it maybe) then the protiens would flucculate faster and travel (by CO2) to the top (foam layer) and make this odd cake. I read, that another guy had experienced the same thing with an...
Hello
APA after 16 days of primary at 15-17 degrees celcius with (W44 US West Coast yeast) we met this sight (see picture). A big dry craked cake on top of our fermenting bucket. We have brewed this APA many times before but never seen this. What is it? And how did it happen?