Looking to brew tomorrow while I've got the day off, and planning on trying out the BIAB method, as I'm looking for a smaller batch than would be efficient with my mashtun. Only hangup is that I have to be out of the house for a good chunk of the middle of the day. I was thinking of 'mashing' in the morning, before heading out, and then boiling when I return in the late afternoon. Would likely just cover the pot in the meantime and leave on the stove. I've heard that if taking a long break between mash and boil, I should at least bring the mash up to a boil to stop the enzyme conversion. I could certainly make time to do this if need be (or better yet, use my wort chiller to pull the mash back down out of the conversion zone). Does anyone have insight as to: A) Whether this is a bad idea in the first place? B) If not, is it necessary/recommended to boil/cool the mash after 'sparging', before the wort sits for 6 hours or so? Thanks!