Abstract: A system has rendering tanks, a polishing tank, and a conveyor associated with the rendering tanks and the polishing tank. A batch rendering method for producing pork rinds with the system includes: (a) loading a first batch of pork skins into the rendering tanks; (b) cooking the first batch of pork skins inside the rendering tanks; (c) unloading the first batch of pork skins from each of the rendering tanks into the conveyor; (d) transporting the first batch of pork skins to the polishing tank; (e) loading the first batch of pork skins into the polishing tank; (f) tumbling the first batch of pork skins within the polishing tank; (g) loading a second batch of pork skins into the rendering tanks; and (h) cooking the second batch of pork skins inside the rendering tanks. Steps (f) and (h) occur at the same time.