ok on sep 4th i stated in a previous post that im doing a welcome home party for my cousin who just got back from africa, cuz hes in the marines, and im doing a 7 pound pork shoulder, a 9 poundish brisket, and about 3 racks of spares, we want to eat around 12 or 1 due to family having to travel long distances...so i want to give my self plenty of time to smoke the brisket, but my question is if my brisket gets done a few hours before im expecting it to be, by wrapping it in several layers of heavy duty alum foil, wrapping it in some towels, and sticking it in a cooler, how long should the food stay warm for? ive never done this before so thats why im asking