PURPOSE: To reduce energy in finishing and drying, by making a process for circulating warm air with a fixed temperature to dry Tofu, a process for dehumidifying and circulating the warm air so that a drying chamber becomes a constant relative humidity at a given temperature and a process for humidying and cooling gradually the warm air so that the drying chamber becomes a constant relative humidty function organically.

CONSTITUTION: The first process wherein warm air having 30W50°C dry temperature is circulated at 0.5W2m/sec for 1W8hr without being dehumidified in such a way that the strain on the surface of Tofu formed during drying process is removed gradually and water channels to transport water to the inside are formed. Warm air is circulated at 0.5W2m/sec air velocity for 6W10hr with dehumidifying it so that the drying chamber has 30W60% relative humidity at 30W 50°C dry temperature. The drying chamber is gradually cooled at 5W15°C/hr to the temperature in the outside of the chamber in such a way that it has 60W80% relative humidity with humidifying.