I got my first brew in the fermentor two night ago and not even 48 hours into the fermentation my batch is ruined. I checked it this morning and found my air lock lying on the floor next to the fermentor and the top of the fermentor was consumed in a mushroom shaped head of yeast. I checked the temp on it and it was at 74 which is about 9 degrees higher than it should have been. Other than that, I followed the recipe nearly to a "T", I couldn't find the Wyeast that the recipe called for so I used what the proprietor at the local homebrew supply said would be a suitable substitute. I think I did an excellent job of keeping everything clean and steril through out the brewing process so my only guess is that the temp was just too high. Any ideas?