A re-heating input means 9 inputs a command into the control means 8 to elevate the temperature of the warmed cooked object, and a boundary temperature at which whether the input by the re-heating input means 9 is recommended or not is determined, is stored in a recommended re-heating temperature storage means 10. 保温中の調理物の温度を上昇させる命令を再加熱入力手段9より制御手段8に入力し、再加熱入力手段9による入力を推奨するか否かの境界温度を再加熱推奨温度記憶手段10に記憶する。 - 特許庁