To impart an antisweat function so as not to cause condensation on a commodity product to be taken out from a refrigerating storage chamber.

The refrigerating storage chamber is provided with a cooling unit in the storage chamber. Cold air is ventilated in the chamber to refrigerate commodity products such as agricultural products. The storage chamber is further provided with a chamber temperature control means to return the temperature of the storage chamber or a commodity to be taken out at least to a dew point relative to the outside air temperature. As such means, there are provided sensors for the inside and outside of the chamber, and a cooling unit. When a commodity is to be taken out from the chamber, a commodity-take out command is issued, and the controller stops the operation of the refrigerating machine of the cooling unit. Then, the controller compares the inside temperature with the outside temperature detected respectively by the above sensors, and while a fan is being operated, the refrigerating machine is operated off the cycle, until the temperature in the inside of the chamber becomes at least a dew point relative to the outside air temperature.