I tried a Porter, my 2nd ever AG batch. My pre-boil volume was spot-on, but I didn't get anywhere near the amount I supposed to boil off. Naturally, I missed both my OG and volume.
I had a 60, 30, 15 hop schedule. My question is, what are the ill effects of having that oh sh*t moment, realizing you did not boil off nearly as much as planned, and just keep going? i.e. your 15 minute hop ends up in there for 40 minutes. Do you pull the hops and boil to reach target? Do you keep them in? Do you stop all and start calling your buddy with the giant fermenter and pray he's not using it?
Incidentally, despite what the Internet says, IMHO a 9 gallon pot does NOT provide enough headspace for an AG full boil. We had it at a pretty low boil, which I'm sure is how this all happened.
Any help appreciated! Thanks!