1. Fish: Remove internal organs and scales, brush the dirty things in the belly of the fish with an old toothbrush, drain the water with kitchen paper towels, and pack them in plastic bags, which can be refrigerated for 2 ~ 3 days.

2. Fresh shrimp: in water with ice, wash the fresh shrimp first, cut off the hair and feet with scissors, then stir up the intestinal mud with toothpicks or bamboo sticks (the fresh shrimp to be treated should be put into ice water), put it in a sealed bag with ice, and freeze it in a way that the shrimp does not overlap, with good freshness and can be stored for 2-3 weeks.

3, cuttlefish: after washing, drain the water, cut open the body, internal organs, feet, cut the body into pieces, put it in a sealed bag and freeze it, which can be stored for 2 ~ 3 weeks.

4. clams: first put a little salt in the container to spit sand, drain it and put it in a plastic bag for refrigeration, which can be stored for about two days.

5. Oysters: Fresh oysters are best eaten as soon as possible and should not be stored for too long. You can wash fresh oysters with clear water, put them in a basin, drop a few drops of sesame oil and keep them for a day or two. Wash the fresh oysters with clear water and put a few drops of sesame oil in a basin, so that they can be kept for a day or two.

6. Crab: Tie the crab's feet with a rope. This is to reduce the physical consumption of crabs, and then cover them with wet towels and put them in the fresh-keeping layer of the refrigerator. In this way, crabs with enough vitality can be preserved first, but it is not recommended to keep crabs in the refrigerator for too long.