Hi, I've brewed about 25 batches now - all extract - and am usually really pleased with the results. Every batch I've brewed until this one has needed a blow off hose. I'm brewing a kit that I brewed before and it blew off but this one just has a layer of krausen about 1 1/2 inches thick. The airlock is really active and the yeast were flying like crazy after 12 hours. Now it's 50 hours and it's starting to slow so I think the krausen layer is not goint to grow anymore. Is there anything to read into a thin layer of krausen like this? One thing, it does seem to be alot more dense than they usually are. Thanks