I just brewed my second batch of beer, ever (partial mashes - IPA & Wit) and both times the kraeusen has knocked off a blowoff hose over the first night. The blow off hose is attached through a rubber stopper and the other end placed in a bucket with a small amount of water and SanStar. The first IPA was not contaminated, don't know about the Wit yet. The 5-gallon carboy is filled to just past the point where it STARTS to taper in.
How can I solve this problem? Less wort? Bigger blowoff hose?
Thanks for all the help.