Abstract: An appliance for cooking food in a closed atmosphere, the appliance including a bowl (6) and a lid, heater means for heating the appliance, for the purpose of performing the cooking, and a catalytic converter (10) for treating the odors of the cooking fumes before the fumes are discharged to the outside, wherein, the catalytic converter (10) includes at least one heater element, and the appliance further comprises temperature regulation means (12) for regulating the temperature of said heater elements, the temperature regulation means (12) being organized to sense the temperature of the cooking zone.