Abstract: Disclosed are embodiments of a dough proofer for a commercial bakery that can receive dough pieces from a dough divider onto trays. Each tray has cups that hold dough pieces. The trays are moved through the proofer by a conveyor system. The proofer has a checkweigher. The checkweigher also uses the same conveyor system and has (1) a tray tipper that tips a tray of dough pieces to make the dough pieces fall out of the tray; (2) a row of gates under the tray to receive and hold the dough pieces and release the dough pieces so that they fall back into their original cups and tray; (3) a row of load cells associated with gates that produces weight data indicative of dough piece weights; and (4) a controller that controls the divider based upon the weight data so that the dough pieces exhibit a substantially uniform target weight.