Appliance for cooking by air flow

Provided is an appliance for cooking and/or reheating food, which includes: a housing having a cooking vessel arranged such as to receive the food to be cooked and/or reheated, and a circuit for heating by ventilation including an air duct arranged such as to channel and direct a flow of hot air onto the food to be cooked and/or reheated, wherein the air duct has at least one cross-section in which a geometric size of the channeled air flow is limited such as to reduce a turbulence of the air flow flowing downstream from said at least one section of the air duct.