Alcohol-free fuel is a new type of renewable energy, which is more economical than liquefied gas, and can not be ignited with open flame. It is a new type of non-flammable and explosive fuel. Liquefied gas and methanol are still widely used in the market, but the state has begun to control methanol and liquefied gas. In the near future, alcohol-free fuel will definitely replace liquefied gas and methanol fuel in the kitchen.