A mounting device (1) for receiving at least one preparation vessel (2) for food with a heating device having at least one receiving portion (4) for the preparation vessel (2) and at least three contact sockets (5a, 5b, 5c, 5d, 5e) for at least partially receiving corresponding contact pins (6a, 6b, 6c) on the preparation vessel (2). A mounting device (1) for receiving at least one preparation vessel (2) for food with a heating device, in which the user safety is improved, is realized in that at least one first of the contact sockets (5c) including at least one signaling means (8), that the signaling means (8) generates at least one insertion signal when one of the contact pins (6b) is inserted at least partially into the first contact socket (5c), that when the insertion signal is present, at least one other of the contact sockets (5a, 5b, 5d, 5e) can be supplied with a working voltage, and that without the insertion signal being present, none of the contact sockets (5a, 5b, 5c, 5d, 5e) can be supplied with a working voltage.