From what I could see of the grommet, after I fish the bottom half out, it may have already had a tear in it at the point where sits between the inside/outside of the bucket. I guess the plastic edge of the grommet hole was sharp enough to cut with the air lock in it. Looked fine when I...
Well, this just happened to me this morning too :-) And it was my second brew too.
Thankfully I had a bit of Star-San mix already setup so I sanitized a big spoon and fished it out of the krausen. I brewed this amber ale last week, and I added some candy sugar yesterday to the primary after a...