1, the bones of Laobanyu are soft, a bit like brittle bones, which can be eaten all over the body. But the fish's internal organs need cleaning.

2. First cut a mouth from the fish's stomach, take out the internal organs, and then clean the old fish.

3, because the old fish will have an ammonia smell, you can soak it in warm water and white vinegar for 30 minutes to deodorize it.

4. After removing the viscera and taste, the old fish can cook according to their favorite taste.