The present invention discloses an ice
coating method for surfaces of quick-frozen fish and relates to the field of
aquatic product processing. The ice
coating method comprises the following steps: 1,killing live fish and after conducting
bloodletting and viscera removal, respectively conducting cleaning with cold water, light salt brine and cold water; 2, conducting quick-freezing to enable thecenter temperature of the fish to be quickly reduced to -25 DEG C or below; 3, soaking the fish in a first ice
coating solution for 3-8 seconds and carrying out a first-layer ice coating; 4, soaking the fish in a second ice coating solution for 3-8 seconds and carrying out a second-layer ice coating; 5, conducting
modified atmosphere packaging; 6, conducting
cryopreservation. The ice coating method uses double
layers of ice coats, the first layer of the ice coat are adopted, the first layer of the ice coat is relatively good in
oxidation resistance, safe and non-toxic, also does not affect
flavor of quick-frozen fish, and can effectively keep the original condition, color and luster and freshness of the quick-frozen fish; and the second layer of the ice coat has good compactness and
moisture resistance, is also strong in
adhesive force and not easy to sublimate, can well isolate contact between air and fish, effectively maintains the freshness of the quick-frozen fish, and enables thefish to be relatively small in quality characteristic changes after rehydration and have a
shelf life of one year.