PROBLEM TO BE SOLVED: To provide a heat sterilization device enabling pressure control not to deform or break a pneumatic container without having expert knowledge.SOLUTION: This heat sterilization device performs heat sterilization by holding in a sterilization tank, a pneumatic container obtained by sealing vapor phase-containing food in a container, and jetting hot temperature water to the pneumatic container. The heat sterilization device includes a tank temperature detector detecting temperature in the sterilization tank, a tank pressure detector detecting pressure in the sterilization tank, and a tank pressure adjusting device adjusting pressure in the sterilization tank, and performs heat sterilization of an object to be sterilized while adjusting pressure in the sterilization tank. Pressure adjustment in the sterilization tank is performed, based on calculated expected initial temperature, by installing an operation control device having a program of calculating expected initial temperature by setting present tank temperature detected with the tank temperature detector as temperature in the pneumatic container after the lapse of prescribed lag time.COPYRIGHT: (C)2011,JPO&INPIT【課題】専門的な知識がなくとも、含気容器を変形・破損させない圧力制御を可能とする。【解決手段】気相分を含んだ食品を容器内に密封した含気容器を殺菌槽内に収容し、含気容器に高温水を噴射することで加熱殺菌を行う加熱殺菌装置であって、殺菌槽内の温度を検出する槽内温度検出器、殺菌槽内の圧力を検出する槽内圧力検出器、殺菌槽内の圧力を調節する槽内圧力調節装置を持ち、殺菌槽内の圧力を調節しながら被殺菌物の加熱殺菌を行う加熱殺菌装置において、槽内温度検出器で検出した現在の槽内温度は、所定の遅れ時間経過後の含気容器内温度であるとして予想品温を算出するプログラムを持った運転制御装置を設けておき、算出した予想品温に基づいて殺菌槽内の圧力調節を行う。【選択図】図1
