refrigeration equipment 1, and frozen space 12 to below freezing, the heat exchanger 13 for the refrigeration space 12 this refrigeration space 12 is cooled to below the freezing point, it is located in the refrigeration space 12, food and drink XA1 is mounting a conveying device 15 conductive to be location, the transport device 15, the floor 17 forming a refrigeration space 12, a caster 26 to insulate the side surface 18 and the ceiling surface 19, a power supply terminal 30 connected to the transport device 15 , a power supply device 16 for simultaneously applying an AC voltage and a DC voltage to food XA1 through the power terminal 30, each of the alternating current and direct current supplied to the power supply terminal 30, or an AC voltage and the DC voltage It provided with reference to each of the value, and the control device 22 for controlling the AC voltage value and the DC voltage value is applied to the food and drink XA1 by power supply 16, a. The refrigeration equipment 1, the food and drink XA1 in supercooled state.冷凍設備1は、氷点下にする冷凍空間12と、この冷凍空間12を冷却して当該冷凍空間12を氷点下にする熱交換器13と、冷凍空間12に配置され、飲食物XA1が載置される導電性の搬送装置15と、この搬送装置15を、冷凍空間12を形成する床面17、側面18及び天井面19と絶縁するキャスター26と、搬送装置15に接続する電源端子30と、この電源端子30を介して飲食物XA1に交流電圧及び直流電圧を同時に印加する電源装置16と、電源端子30に供給される交流電流値及び直流電流値の各々、又は交流電圧値及び直流電圧値の各々を参照しながら、電源装置16によって飲食物XA1に印加される交流電圧値及び直流電圧値を制御する制御装置22と、を備える。この冷凍設備1は、飲食物XA1を過冷却状態にする。
