METHOD AND APPARATUS FOR SURFACE CRUST FREEZING OF FOOD PRODUCT

摘要

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