A full brisket is a single cut of beef, and each cow has two: one on each side, just above the front shanks and below the chuck. The whole beef brisket is a large cut of meat that is taken from the chest area of the butchered steer. The whole brisket has a large amount of fat, part of it internal and the rest found as a layer on one side.
A good brisket will have fat marbled throughout the meat, which helps keep the beef tender and juicy. Brisket also contains quite a bit of connective tissue because the two muscles of the brisket are worked as the steer stands or moves around in its daily routine.
A whole brisket is also commonly called a “packer’s brisket” or a “full packer.”