Plate freezers are commonly used for freezing brick-shaped products in mold or box. In plate freezers, refrigerant is allowed to circulate inside thin channels within the plates. The packaged products are frmly pressed between the plates. High rates of heat transfer can be obtained between the packaged product and the evaporating plates. We are proud to be the drafter of the China National Standard of Plate Freezer (GB /T22734-2008).