PROBLEM TO BE SOLVED: To provide a sterilizing apparatus, a sterilization method, and a feed manufacturing method using hydrogen peroxide gas having sufficient sterilization performance and allowing the control of the water content in an object after sterilization.SOLUTION: A sterilizing apparatus comprises: a heater 25 that vaporizes hydrogen peroxide L to hydrogen peroxide gas supply means 24 that supplies the hydrogen peroxide L to the heater 25 a treatment tank 3 that has a space 31 for sterilizing an object 100 using the hydrogen peroxide gas vaporized by the heater 25 and a control part 7 that controls the concentration of the hydrogen peroxide gas in the space 31 so that the concentration is not less than a concentration having a sterilization effect on the object 100 and so that the vapor amount contained in the space 31 is less than the saturated vapor amount.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】十分な殺菌性能を有し、且つ、殺菌後の対象物の水分量の制御が可能な過酸化水素ガスを用いた殺菌装置、殺菌方法、及び、飼料の製造方法を提供すること。【解決手段】過酸化水素水を過酸化水素ガスに気化させる加熱器25と、加熱器25へ過酸化水素水Lを供給する供給手段24と、加熱器25で気化された過酸化水素ガスを用いて対象物100を殺菌する空間31を有する処理槽3と、空間31の過酸化水素ガスの濃度を、対象物100に対して殺菌効果を有する濃度以上であって、且つ、空間31に含まれる蒸気量が飽和蒸気量未満となる過酸化水素ガスの濃度に制御する制御部7と、を備える。【選択図】 図1
