Abstract: An assembly and method are disclosed for separating the muscle tissue of meat from sinew. A plurality of elongate pins which are spaced from each other in a direction perpendicular to the longitudinal axes of the pins pierce the meat from which the sinew is to be removed to restrain the sinew against movement, and a compressive force is imparted to the muscle tissue by a compression assembly while the sinew is being restrained against movement. The force which is imparted to the muscle tissue separates the muscle tissue from the sinew and causes the muscle tissue to move away from the restrained sinew and through the spaces between the pins. With the assembly and method of the invention it is possible to remove significant and substantial portions of the sinew from the meat being processed, and to reduce the fat in the muscle tissue to as little as less than 1-11/2 wt %.