PROBLEM TO BE SOLVED: To detect conditions of stirring and to reliably perform proper stirring in a steaming apparatus for heating soup and foodstuffs for steaming housed in a treatment tank with saturated steam.SOLUTION: The steaming apparatus houses boiled foodstuffs made of solid foodstuffs and fluid soup in the treatment tank 1 and heats the foodstuffs 5 by introducing the saturated steam in the treatment tank 1. In the steaming apparatus, during the steaming process in which foodstuffs are cooked by maintaining a prescribed steaming temperature in the treatment tank, pressure in the treatment tank is temporarily made lower than saturated steam pressure at a steaming temperature to perform stirring under reduced pressure in which the inside of the foodstuffs is boiled to stir the foodstuffs. The steaming apparatus is provided with a foodstuff temperature sensor 14 for detecting foodstuff temperature in the treatment tank 1. An operation controller 13 detects the completion period of decompression on the basis of the temperature of foodstuffs detected by the foodstuff temperature sensor 14 when performing stirring under reduced pressure.COPYRIGHT: (C)2012,JPO&INPIT【課題】処理槽内に収容した煮汁と煮物用の具材を飽和蒸気によって加熱するようにしている蒸煮装置において、撹拌の状況を検出し適正な撹拌を確実に行うことができるようにする。【解決手段】処理槽1内に固形の具材と液体の煮汁からなる煮物用食材を収容し、処理槽1内に飽和蒸気を導入することによって食材5の加熱を行う蒸煮装置であって、処理槽内を所定の蒸煮温度に維持することで食材を加熱調理している蒸煮工程時に、処理槽内の圧力を蒸煮温度における飽和蒸気圧力よりも一時的に低くすることで、食材内を沸騰させて食材を撹拌する減圧撹拌操作を行うことができるようにしている蒸煮装置において、処理槽1内の食材温度を検出する品温センサ14を設けておき、運転制御装置13は減圧撹拌操作時に品温センサ14にて検出している食材温度に基づいて減圧の終了時期を検出する。【選択図】図1
