The reason why the non-stick pan is non-stick is because its metal inner wall is coated with a layer of paint, this layer of paint friction coefficient is relatively small, and has high and low temperature resistance, corrosion resistance, no water absorption and other excellent characteristics, its chemical stability performance in all chemical substances are almost inert, more than ceramics, stainless steel, and even gold and platinum. The use of non-stick cooking dishes, bright color, delicious taste without greasy sense, can improve people's appetite. Therefore, once the non-stick pan came out, it was favored by people.