Grooved chamber for a food-product separation machine

A separation assembly for a food product separating machine configured to separate meat product from bone product includes a separation chamber defined by a circumferential side wall, a longitudinal axis, and a radius. The separation chamber includes a plurality of apertures disposed in the circumferential side wall and at least one V-shaped groove disposed along an inner surface of the circumferential side wall. The V-shaped groove is defined by a vertex and an angle bisector of the vertex and is formed in an inner surface of the chamber such that the angle bisector is tilted relative to the radius of the chamber.