the fish should not be stored in the refrigerator for too long, domestic refrigerator refrigeration temperature is generally -15 ℃, the best refrigerator can only reach -20 ℃, and aquatic products, especially fish, in the storage temperature does not meet the -30 ℃ below, the fish tissue dehydration or other changes occur, such as the crucian carp prolonged cold storage, it prone to rancidity in fish, meat changes, are not edible.
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