1. Put the treated catfish into the basin.
2. Add 80 -90 degrees of hot water to the basin, so that the mucus on the catfish will solidify.
After the catfish is scalded by boiling water, there will be a layer of mucus on the surface. Take a chopstick to remove most of the mucus from the epidermis.
4. Take out the catfish and scrape off the residual mucus on the catfish surface with a knife.
5. After shaving, wash it with water, so that the mucus on the catfish is removed.