Brewing an American ale from Austin Homebrew Shop. Extract. Came with Windsor dry yeast. Is it not uncommon for this to completely ferment out in 18 hours? Didn't get a huge amount of krauzen, but there is some nonetheless. Smells like beer. This recipe had about 1.5 pounds of grains, 3 LBS of Munich LME and 4 LBS of pale LME. I know Windsor is not known for it's high alcohol content, but wow, this stuff was fast. Assume everything was in order....right pitching temp, rehydrated the yeast, etc. etc.