To make a series of processes successive by omitting a cooling and a reheating process for soybean curd.

This device is provided with a pipeline 10 for successively conveying bean curd S, a viscosity increasing agent injection unit 20, a solidifying agent injection unit 30, and a aging conveyor 40. The aging conveyor 40 ages and solidifies the soybean curd from the pipeline 10 successively to successively manufacture frozen bean curd.