It is an object of the present invention to provide a process for producing a fish scale product in which fish scales are reduced in molecular weight in a short time to obtain fish scale products efficiently. As a means for solving the problem, the method for producing fish scale products according to the present invention is characterized in that it includes a step of pressurizing and steaming fish scales under saturated steam, followed by explosion by opening to atmospheric pressure. Different fish scale processed products can be obtained by changing the conditions of the pressurized steaming treatment. In this case, it is possible to make the treatment temperature of the pressurized steaming treatment constant, change the treatment time, or keep the treatment time constant, and change the treatment temperature.魚鱗を短時間で低分子化して効率よく魚鱗加工物を得る魚鱗加工物の製造方法を提供することを課題とする。 解決手段として、本発明に係る魚鱗加工物の製造方法は、魚鱗を飽和蒸気下で加圧蒸煮処理した後、大気圧に開放して爆砕する工程を含むことを特徴とする。前記加圧蒸煮処理の条件を変えることによって、異なる魚鱗加工物を得ることができる。この場合に、加圧蒸煮処理の処理温度を一定にし、処理時間を変えるか、もしくは処理時間を一定にし、処理温度を変えるようにすることができる。
