Abstract: An apparatus for grinding and concurrently applying coating materials to manufacture a coated product includes a substantially cylindrical tub for receiving material to be ground. The tub is attached for rotation for causing material to be funneled towards an aperture in a bottom operatively rigidly attached to the frame. The bottom is disposed below the tub for forming a container with the tub. At least one curved screen is operatively attached to the frame below the aperture in the bottom. The curved screen is disposed about an axis of curvature and the curved screen has openings therein. A cylindrical grinding drum is attached in a rotational relationship to the frame about a drum axis that is coincident with the axis of curvature of the curved screen. The cylindrical drum has an exterior periphery of the drum with teeth operatively attached to the exterior periphery of the drum.