To reduce the running cost, depending on the yield in the case of yield was reduced By energy conservation and can make economical operation, also, it is possible to increase gradually the processing capacity if the yield is increased, it is possible to respond flexibly to the situation of the yield increase. Fruit for steaming apparatus 1, a unit equipment 1U by several linked continuously arranged a plurality of processing chambers 20, it is provided a conveying path 24 along a plurality of processing chambers 20. An entrance door unit 1A provided on one end of the multiple linked unit equipment 1U, it provides an exit door unit 1B at the other end. Respectively provided a partition 26 for partitioning the processing chamber 20 for each unit equipment 1U on the upper side and the lower side of the conveying path, it has opened and closed the partition 26A provided on the upper side of the transport path 24. For each unit equipment 1A provided with a steaming air current generating means 50, it includes a control unit 60 for individually controlled for each unit equipment 1U the operation of steaming air current generating means 50.収穫量が低下した場合には収穫量に応じてランニングコストを低減させることで、省エネ且つ経済的な運転を行うことができ、また、収穫量が増加した場合には徐々に処理容量を増加させることで、収穫量増加の状況に柔軟に対応することができる。青果物用蒸熱処理装置1は、ユニット設備1Uを複数連結して複数の処理室20を連続的に配置させ、複数の処理室20に沿った搬送路24を設けている。複数連結したユニット設備1Uの一端側に入口扉ユニット1Aを設け、他端側に出口扉ユニット1Bを設ける。処理室20をユニット設備1U毎に仕切る隔壁26を搬送路の上側と下側にそれぞれ設け、搬送路24の上側に設けた隔壁26Aを開閉自在としている。ユニット設備1A毎に蒸熱気流発生手段50を設け、蒸熱気流発生手段50の動作をユニット設備1U毎に個別制御する制御部60を備える。
