The valuable solids are separated out in the chamber and periodically removed by hand. Separation is executed by reliable, cooled chamber centrifuges. The bowl inserts divides the bowl in two chambers. The product is fed into the center of the rotating bowl through the feed. It flows from the center to the periphery through both chambers, whereas the finer particles are separated out in the outer chamber. The clarifying efficiency remains constant until the chambers are filled with proteins.