Abstract: A receptacle for containing a powdered detergent is arranged in the door of a dishwasher having a washing chamber. The receptacle has an opening which, when the door is closed, is situated inside the door and faces the washing chamber. The opening can be closed by a lid which can be locked in a closed position by a lock hook which engages a projection on the lid. The lock hook can be acted on in order to release the lid for movement to an open position by an electric means arranged in the dishwasher. A mechanical means in the door is arranged to transmit movement form the electric means to the lid in order to open it.