Barbecue grills are a type of barbecue equipment that can be used to make grilled foods such as lamb kebabs, grilled meat and grilled vegetables. Barbecue grills can be divided into charcoal grills, gas grills and electric grills depending on the heating source; manual grills and automatic grills depending on the form of grilling; home grills and commercial grills depending on the use. The essence of a barbecue is to heat and cook food by means of a heat source. A barbecue in a narrow sense refers to a common barbecue, where the heat source acts directly on the food, and a barbecue in a broad sense can cover different forms such as teppanyaki.