VACUUM COOLING DEVICE

A vacuum cooling device (1) comprises: a first cooling control unit (501) that reduces internal pressure in a cooling tank (2) to a first target pressure by way of a pressure reducing means (3) and that maintains the internal pressure in the cooling tank (2) at the first target pressure for a first time period after the first target pressure is reached; a product temperature determination unit (502) that determines whether the temperature detected by a product temperature sensor (21) has reached a target temperature after cooling by the first cooling control unit (501); and a second cooling control unit (503) that comprises a second cooling maintaining control unit (5033) that, when the product temperature determination unit (502) determines that the target temperature has not been reached, sets a new temperature obtained by subtracting a first temperature from a set temperature, reduces the pressure to a new set pressure set by the pressure reducing means (3), and maintains the internal pressure of the cooli