To heat the stone of barrel fish, the materials to be prepared are: stone, clear water, pot and oil.

First, put the stone into the water and clean it.

Second, then take the stone out of the water and drain it.

Third, then pour the right amount of oil into the pot.

Fourth, put the stone in the oil pan and fry it for half an hour.

Take out the stone after five and a half hours.

Six, put the fish on the stone, the heat of the stone can cook the fish.