I'll go on the record as being a coward. I'm way to chicken to try open fermentation. That and my dogs would drink it all. That or the cat would drowned in it.
Without question, the greatest invention in the history of mankind is beer. Oh, I grant you that the wheel was also a fine invention, but the wheel does not go nearly as well with pizza.
-Dave Barry
Open fermentation does not mean no cover at all. Most people doing "open fementation" use foil to cover ther carboy. The theory is that the airlock creates back pressure that stresses the yeast.
