Charcoal is commonly found in large-scale self-service rotisserie, Japanese-style rotisserie, Korean restaurant, northeastern barbecue, and star-rated hotel. The charcoal grill is a kind of stove that uses the mechanism of smokeless charcoal as a raw material for barbecue. Charcoal is the carbon dioxide released during the burning process. It is colorless and odorless, and the charcoal is burnt and there is no smoke. Ordinary grills have smoke when making products because they cause oil and seasoning to fall into carbon fire when making products.