Abstract: A system for treating food product includes a tank filled with a treatment solution such as a disinfecting solution; a conveyor system including a conveyor belt disposed and moving through the tank with trays spaced along the conveyor belt which are adapted to receive the food product; and a perforated retainer member to maintain the food product in the solution between adjacent trays for exposure to the solution and to prevent the food product from floating away from the proximity of the conveyor system.

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