Appliance for preparing a food or for cleaning an item to be cleaned, comprising a housing, a processing chamber for the food or the item to be cleaned, which chamber is arranged in the housing and has a processing chamber opening, a door movable back and forth between an open position and a closed position for tightly closing the processing chamber opening in the closed position of the door and for accessing the processing chamber in the open position of the door, a control unit and a drive device which is connected to the control unit in a signal and energy-transmitting manner, and to the door in a force-transmitting manner, and has only one single electric motor for automatically moving the door from its open position into its closed position and vice versa in a switched-on state of the drive device, in which the electric motor of the drive device is energised by means of the control unit, the drive device being designed in such a way that, in its closed position, the door presses sealingly against an edge of the housing surrounding the processing chamber opening with a predetermined contact pressure, the drive device being designed in such a way that the door can be manually transferred from its open position into its closed position and from its closed position into its open position in a switched-off state of the drive device, in which the electric motor of the drive device is not energised by means of the control unit, characterised in that the drive device comprises a first drive unit and a second drive unit connected to the first drive unit in a force-transmitting manner, the first drive unit being designed to move the door from its open position into its closed position and vice versa, and the second drive unit being designed to apply the contact pressure in the closed position of the door, the first drive unit being designed as a first transmission, the second drive unit being designed as a second transmission and the second transmission being connected to the first transmission in a continuously torque-transmitting manner and comprising a movable carriage for generating the contact pressure. a housing, a processing chamber for the food or the item to be cleaned, which chamber is arranged in the housing and has a processing chamber opening, a door movable back and forth between an open position and a closed position for tightly closing the processing chamber opening in the closed position of the door and for accessing the processing chamber in the open position of the door, a control unit and a drive device which is connected to the control unit in a signal and energy-transmitting manner, and to the door in a force-transmitting manner, and has only one single electric motor for automatically moving the door from its open position into its closed position and vice versa in a switched-on state of the drive device, in which the electric motor of the drive device is energised by means of the control unit, the drive device being designed in such a way that, in its closed position, the door presses sealingly against an edge of the housing surrounding the processing chamber opening with a predetermined contact pressure, the drive device being designed in such a way that the door can be manually transferred from its open position into its closed position and from its closed position into its open position in a switched-off state of the drive device, in which the electric motor of the drive device is not energised by means of the control unit, characterised in that the drive device comprises a first drive unit and a second drive unit connected to the first drive unit in a force-transmitting manner, the first drive unit being designed to move the door from its open position into its closed position and vice versa, and the second drive unit being designed to apply the contact pressure in the closed position of the door, the first drive unit being designed as a first transmission, the second drive unit being designed as a second transmission and the second transmission being connected to the first transmission in a continuously torque-transmitting manner and comprising a movable carriage for generating the contact pressure.