are you asking about the difference between gross weight and net weight of meat in catering industry? Gross weight refers to the weight of the commodity itself plus the weight of the package. Net weight refers to the weight of the commodity itself, that is, the actual weight of the commodity after removing the packaging.

take pork as an example. Gross weight: refers to the pure weight of live pigs standing on the weighing scale, which can be calculated according to the figures on the weighing scale. Net weight: refers to the weight of the pig after the head, viscera, trotters and tail are removed, which can also be called ketone weight.

in the physics field, there used to be a saying that the magnitude of gravity on an object near the surface of the earth is called "weight". An object on the earth's surface will be subjected to inertial centrifugal force due to the rotation of the earth, in addition to its gravity. The resultant force of these two forces is called the weight of the object.