The invention relates to An aircraft on-board kitchen module (1) comprising at least one heater and/or cooler with at least one first compartment (2) for drinks and/or food and whose temperature can be conditioned by at least one thermoelectric element (5) having a first and a second heat exchanger (8, 9), one of the heat exchangers (8, 9) forming a cold side and the other heat exchanger (8, 9) forming a hot side of the thermoelectric element (5) such that heat generated by the thermoelectric element (5) is dissipated by a primary coolant from a central cooling system (11) of the aircraft, the primary coolant being supplied via a coolant duct (10) that is selectively supplied with ambient air from the cabin and/or conditioned cold air from the central cooling system (11) of the aircraft.