How Much Brisket for 12 People?

Twelve is the friendliest number in brisket math, because twelve adults plated is 6 pounds cooked and 12 pounds raw — which is one whole packer, no rounding, no leftover anxiety, no second brisket. It's the number the average cryovac packer was practically born to feed. The only way to get twelve wrong is to buy a flat instead: you'd need two of them, they'd cost more per pound, and you'd lose the point — literally, the point, the fatty half that makes the sandwiches the next day worth planning for. Buy the packer, cook it whole, and enjoy the rare cook where the math just works.

The math, worked out

Every number on this page comes from the same two steps. Here it is longhand for 12 adults eating brisket as the main dish:

1. 1. Cooked brisket needed
   12 adults × 0.5 lb = 6 lbs cooked
2. 2. Raw weight to buy (about 50% is lost to trimming and cooking)
   6 lbs × 2 = 12 lbs raw

Want leftovers? Add 15 percent and buy 14 lbs instead — that's about 3 extra meals once the party's over.

12 people, by how you're serving

Serving style moves this number more than anything except sides. Here's all three, with and without a full spread of side dishes:

If some of your 12 are kids

Kids eat about a quarter pound of cooked brisket each, half what a plated adult puts away, and they fill up on sides and rolls faster than you expect. Swapping four adults for four kids in a group of 12 takes roughly 2 lbs off your raw weight. Worth doing properly rather than guessing —put your real split into the calculator.