The invention provides a
processing technology and device for fresh maintaining of freshwater
crayfish. The
processing technology comprises the steps of
raw material selection, cleaning and boiling, classification, manual
crayfish head removal, first quick-freezing, first ice
coating, second quick-freezing, second ice
coating and the like. The technology has the advantages that a two-time ice
coating technology is adopted, the ice coating is high in
adhesion force, and the
crayfish are well sealed. In the technology, the two-time ice coating technology is adopted, the ice coating is high in
adhesion force, the crayfish are well sealed and are not likely to go bad, and it can be ensured that the crayfish are good in appearance and high in quality. Ice coating crystals are added into an icewater tank, the
toughness and the transparency of the ice coating are improved, it is ensured that the crayfish obtained after ice coating are bright in color, lustrous and uniform in size, crayfish meat is higher in
toughness, and after being cooked, the crayfish meat is better in taste, delicious and attractive; the elasticity, the tenderness and other texture indexes of the crayfish meat are higher; the storage time is prolonged, however, food cells cannot be destroyed, neither the meat nor the taste is reduced, and the original delicate
flavor of the crayfish is reserved.