PURPOSE: To prevent the deterioration of the freshness of a food during freezing as best as possible, and to enable the maintenance of good quality of the food, by keeping the food to an electrically charged state during freezing operation.

CONSTITUTION: A food such as green vegetables, meat, fish, shellfish, algae, etc. is maintained in an electrically charged state during the freezing process comprising the maintenance of the food at or below the freezing temperature. For example, the carrier 7 for carrying a freezing pan is electrically insulated from the metallic freezing pan 4 with an insulation plate 6, and the fresh food 5 to be frozen is put into the pan 4 and introduced into a refrigerator 1 together with the carrier 7. The electrostatic inducing apparatus is connected to an electrical source, and an electrode 3 is connected to the apparatus through a lead wire 2. The electrode is connected to an arbitrary pan 4 to ensure the electrical charge of the food to be frozen. The electrical source may be DC or AC source, and is selected properly according the condition of the working place and the charging process used in the present process. The effect is independent to the frequency in the case of using an AC source. There is no particular limitation in the voltage of the electrical source, and sufficient effect can be achieved at about 1,200V.