PROBLEM TO BE SOLVED: To provide a sterilizer for retort pouch food that can use cooling water efficiently without waste.SOLUTION: A sterilizer 10 comprises: a pressure container 200 comprising a chamber 210 having an opening 215 at an upper end and an openable and closable lid 220 sealing the opening 215 water supply means 300 supplying water into the chamber 210 heating means 400 heating the water in the chamber 210 to generate high pressure steam drainage means 500 discharging the water and the high pressure steam in the chamber 210 and circulation means 600 connected between the drainage means 500 and the water supply means 400 and returning the high pressure steam and the water discharged by the drainage means 500 to the water supply means 400. The circulation means 600 includes a pump 620 and a heat exchanger 630, and the water and the high pressure steam discharged by the drainage means 500 is cooled and returned to the water supply means 300.COPYRIGHT: (C)2015,JPO&INPIT【課題】冷却水を無駄なく効率的に使用できるレトルトパウチ食品用の殺菌装置を提供すること。【解決手段】上部に開口215を有するチャンバー210と、開口215を密閉する開閉可能な蓋220とで構成される圧力容器200と、チャンバー210内に水を供給する給水手段300と、チャンバー210内の水を加熱して高圧蒸気を生じさせる加熱手段400と、チャンバー210内の水及び高圧蒸気を排出する排水手段500と、排水手段500と給水手段400との間に接続されるとともに、排水手段500によって排出される高圧蒸気及び水を給水手段400に戻す循環手段600と、を備えて構成される殺菌装置10であって、循環手段600は、ポンプ620と熱交換器630とを備え、排水手段500によって排出される水及び高圧蒸気を冷却して給水手段300へ戻すことを特徴とする。【選択図】図1
