Abstract: A facility for preparing bakery and/or pastry products including a plurality of successive operational stations including at least one preparation station and one baking station, in addition to a conveyor supporting the products and moving the products through the plurality of operational stations. The products baking station includes a hot air oven through which the conveyor is moved along a path having vertical upward and downward branches, each branch in the path being flanked by a mechanism for introducing hot air on one side and by a mechanism for extraction of air on the opposite side.