DRYING OF OBJECT TO BE DRIED

摘要

PROBLEM TO BE SOLVED: To provide a drying method for e.g. a food required for delicate nice-smelling, enabling such a food to be dried without losing its unique flavor, easy to control drying degree, and capable of performing drying treatment in a short time. SOLUTION: A vacuum chamber 10 is housed with a fluidized bed-type dryer 1, the air in the chamber 10 is exhausted via an exhaust blower 9 to always maintain the pressures both inside and outside the fluidized bed at a vacuum state. In parallel with the above process, hot air is introduced into the fluidized bed, while the temperature inside the fluidized bed is detected by a thermosensor, and an object such as a food to be dried is dried under control of hot air temperature.