Soak the snail in clear water for a few days first. If you want to hurry, put one or two pieces of pig iron in it to soak together, so that the snail will spit out all the dirty things inside.
After washing, add water to the pot and cook with snails. When there is water floating on the water like leaves, they can be poured out.
After cooling, you can take out the meat with a toothpick or needle.