METHOD AND APPARATUS FOR SURFACE CRUST FREEZING OF FOOD PRODUCTS

摘要

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