I just had an Erlenmeyer flask crack while heating up some starter wort on the stove. WTF? Anybody else ever had this happen? I didn't do anything out of the ordinary. It was a 1.4L starter in a 3L flask. I put it on the burner on the stove and it was just about at the point of boiling when I heard a kind of muffled pop. I went over to see what had caused the sound and realized the flask had cracked and was leaking just a little bit out of bottom. I took it off the stove and let it cool, and eventually poured out the starter. Good thing I was sitting right there or I might've had a pretty serious mess on my hands. As it is, I'm just kind of puzzled and ticked off. What the hell? I can only guess that maybe I cracked it somehow and didn't notice, because I've boiled this thing many times before without problems.