Volcanic rocks are suitable for gas stoves that use gas or natural gas as fuel. Using the excellent thermal conductivity, stability and strong adsorption ability of volcanic rocks, the food is heated evenly in the barbecue process, and the efficiency is greatly improved. Its heat will form an attractive golden color on the surface of food, but the water inside the food will not be lost due to overheating, and the softness of the food can be maintained; It can avoid the generation of a large number of lampblack and carcinogens, and because volcanic rocks contain trace elements beneficial to human body, it has unique flavor, health and environmental protection. ?