<p> A thermal cooker, having: a cooker body; a pot-shaped container which is installed on the cooker body and which houses a heated item; a heating unit for heating the pot-shaped container; a lid body placed on the pot-shaped container and provided with a vent through which water vapor in the pot-shaped container is discharged; a vent valve for opening/closing the vent and sealing the pot-shaped container when the vent is closed; and a control unit for controlling the heating power of the heating unit. The control unit performs a control for stopping the heating performed by the heating unit and storing the heated item at room temperature in a state in which the vent is closed after the end of the cooking mode in which the heated item is heated and cooked.</p>