Before killing live fish, catfish can struggle in concentrated salt water (a small amount), or just sprinkle salt on the surface without water, let it struggle, and then kill it half an hour later, so as to remove a lot of colloid.

Salt may not completely remove the mucus from catfish. As long as the catfish is alive, its body surface will continue to produce mucus. So after the catfish is killed, it should be scrubbed with flour or starch again. If the gum is not completely removed, you can scrape it again with a kitchen knife, so that it can be completely removed.

The catfish gills must be completely removed, the congestion in the body cavity should also be completely removed, and the black membrane and fat in the body cavity should also be removed. These substances are fishy, and if they are completely removed, their taste and appetite will be affected.

Extended data:

Catfish is rich in nutrition. Every 100g fish contains 64. 1g and protein 14.4g, and contains various minerals and trace elements. It is especially suitable for people who are weak, sick and malnourished.

Except for the bad taste of catfish eggs, they are all treasures. Catfish is a kind of precious nutrition, which has been recorded in history books as early as. It can be compared with shark's fin and wild turtle, and it is the treasure of fish.

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