Abstract: A cooking utensil comprises a reading member responsive to a recording medium containing a cooking program which is carried out in the cooking utensil, and a control circuit responsive to the cooking program read by the reading member, thereby conducting the cooking program through properly energizing an energization circuit for the cooking utensil. The cooking program may be desirably recorded on the recording medium through input keys of the cooking utensil. The recorded cooking program can be checked whether or not it is recorded with accuracy. Cooking information of the cooking program is indicated by an indicator for representing conditions of the cooking utensil. The cooking program may be modified according to total weight of a foodstuff to be cooked.

Abstract: A heating appliance comprises a generation circuit of a magnetron for effecting a series of cooking operations at least one of which requires manual cooking operation by an operator adapted to a foodstuff therein and an indicator for announcing to the operator that the manual cooking operation is to be conducted concerning the foodstuff.