Abstract: A system for threshing podded produce such as peas and beans, which may be harvested with their vine attached. A horizontal, cylindrical, rotating screen encloses a main beater having numerous paddles of height about one-twelfth the beater diameter. Paddles are pitched at an angle of about 25 degrees to a plane including the axis of the main beater and are also raked backwards by about 15 degrees from radial. A counter-rotating first satellite beater disposed above the main beater collects produce which has been macerated between the main beater and the screen and cooperates with the main beater, the linear tip speeds of the paddles and blades of both beaters being identical, to discharge a radially narrow, high-speed stream of macerated material across the interior of the cylindrical screen against a first sieving region of the screen above a second satellite beater.