Patent ID: 7805951

Claim:
A method which may be used for freezing a food product, said method comprising: a) freezing at least one surface of the food product, wherein said freezing: 1) comprises bringing said food product into contact with a refrigerating surface; 2) takes place in a treatment container; and 3) results from the use of a vibrating support and a film of a cryogenic liquid placed on said vibrating support, wherein said vibrating support has an upward slope; b) providing a first heated temperature probe at a location immediately prior to an exit of said food product from said treatment container, wherein said first heated temperature probe measures a temperature at its location: c) providing a cryogenic liquid supply system, wherein said cryogenic liquid supply system comprises a proportional valve; d) providing a first data acquisition and processing unit which receives temperature information from said first heated temperature probe, and which can control an opening of said proportional valve; and e) providing a grill, wherein: a) said grill is substantially located on said refrigerating surface of said vibrating support; and b) said grill removes at least part of said cryogenic liquid from said food products as said food products pass over said grill.