METHOD AND APPARATUS FOR SURFACE CRUST FREEZING OF FOOD PRODUCT

摘要

An apparatus and method for surface crust freezing of a food product utilizes a refrigeration shell (21) enclosing a freezing chamber (40), the freezing chamber having a cavity (37) shaped to substantially accommodate the shape of the exterior surface of the food product; the cavity communicating with the refrigeration shell; a transport substrate (44) to carry the food product into the freezing chamber; a cryogen supply; and a gas circulation device (33) in the refrigeration shell in communication with the cryogen supply to introduce a cooling flow of gas (47) containing cryogen into the cavity so as to contact the food product along its exterior surface.