A microwave oven for use in cooking food having a door and door mounted controls and a cooling system where the door mounted controls are disclosed. The microwave oven having an external enclosure defining an outer cabinet and an oven cavity supported within the external enclosure where the oven cavity has a front access opening. The door is rotatably supported adjacent the external enclosure for selectively closing the access opening. A control unit is mounted within the door and a ventilation cooling path is formed within the door for cooling the control unit mounted with the door. A blower is supported within the external enclosure for directing an air flow toward the door and into the ventilation cooling path. The microwave can further include a housing which is supported within the door for enclosing the control unit and where the housing forms part of the ventilation cooling path. A baffle is disposed within the housing wherein the housing and the baffle direct the air flow initially upwardly and then downwardly to pass along the control unit.