Paper-wrapped fish can be kept for a day. When making paper-wrapped fish, the fish must be cleaned and marinated for at least 10 minutes and no more than 30 minutes. The longer the marinating time, the tougher the fish will be. The paper must be sealed tightly so that the fried fish will be more delicious. When frying, fry on low heat and slowly, not too long, only half an hour at most, to prevent the fish from frying.

Paper-wrapped fish is a healthy delicacy that became popular in Sichuan and Chongqing around 2006. It has expanded to most counties in the country. It is developed by combining the characteristics of Korean paper barbecue and traditional Wanzhou grilled fish. The new generation of healthy grilled fish has been highly sought after by consumers as soon as it was launched on the market. As people who love paper-wrapped fish spread across the country, a large number of paper-wrapped fish and grilled fish restaurants have gradually opened up in most cities, offering grilled fish with different spiciness according to the tastes of diners. Grilled fish originated from the Daning River in Wuxi and became famous in the ancient city of Wanzhou. It is called Wanzhou grilled fish, also known as traditional grilled fish.