The present invention includes a conveyor for conveying the foodstuffs in the cooking chamber through the cooking chamber of the plurality of connecting the cooking chamber provided with a cooking space of food to be cooked is accommodated, said cooking chamber a plurality of I includes a steam generator for generating steam, the steam flow path leading to the cooking chamber and steam from the steam generator, a temperature detector for detecting the temperature of the cooking space, a storage unit, and a control unit In the cooking device, by storing in correspondence processing time and processing temperature for cooking in a multistage foodstuff each be associated with cooking chamber multiple in accordance with the ratio of the processing time of multi-stage, the cooking chamber to a constant treatment temperature of setting the processing temperature, in the cooking chamber temperature detected by the temperature detector is set, and by adjusting the flow rate of the steam flowing through the steam path, the cooking chamber In foodstuff to be cooked in a treatment time corresponding to a processing temperature that is set to control the conveying speed of the conveyor.本発明は、加熱調理される食材が収容される調理空間が設けられた調理庫を連結した複数の調理庫と、複数の前記調理庫を貫通し各調理庫内に食材を搬送するコンベアと、蒸気を発生させる蒸気発生部と、蒸気発生部からの蒸気を各調理庫内に導く蒸気流路と、調理空間内の温度を検出する温度検出部と、記憶部と、制御部とを備えた加熱調理装置において、食材毎に多段階で加熱調理するための処理温度および処理時間を対応付けて記憶し、多段階の処理時間の割合に応じて複数の調理庫と対応付けることにより、各調理庫に処理温度を設定し、各調理庫内において、温度検出部により検出される温度が設定された処理温度に一定となるように、蒸気流路を流れる蒸気の流量を調整し、各調理庫内において、設定された処理温度に対応する処理時間で食材が加熱調理されるように、コンベアの搬送速度を制御する。
