Stainless steel refers to steel that is resistant to weak corrosive media such as air, steam, and water, and chemically corrosive media such as acid, alkali, and salt, also known as stainless acid-resistant steel. The stainless steel widely used in food, medical and other industries is also called 304 stainless steel. 304 stainless steel is a common material in stainless steel, with a high temperature resistance of up to 800 ℃, and has the characteristics of good processing performance and high toughness. However, stainless steel will oxidize and yellow under long-term high temperature conditions, which will affect the appearance. In addition, relatively thin stainless steel may be deformed under high temperature conditions, and it will be reduced again after the temperature is lowered.

Enamel, also known as enamel, is a composite material in which inorganic vitreous materials are condensed on the base metal by melting and firmly combined with the metal. The enamel coating on the metal surface can prevent the metal from rusting, so that the metal will not form an oxide layer on the surface when it is heated and can resist the erosion of various liquids. The high temperature resistance of enamel is up to 900 ℃.

Nowadays, for many families, whether they choose an oven, a fryer, or even a multi-functional air oven, they pay more attention to the material. Although stainless steel is corrosion-resistant and heats up quickly, the stainless steel material is easy to deform and turn yellow when exposed to high temperature; however, the enamel material is resistant to high temperature. Good cohesion, so the temperature will be more uniform. Therefore, if it is an oven, it is recommended to choose an enamel liner material. Moreover, the enamel liner can withstand a wide range of temperature changes, from -60 to 450 degrees of high temperature fusion. In terms of physical properties, the enamel liner has the characteristics of compression resistance, tensile strength, elasticity, electrical insulation and no pollution. In terms of chemical properties, it has the characteristics of acid resistance, alkali resistance, high temperature resistance and water vapor resistance. Its pressure bearing capacity and thermal insulation capacity are stronger than those of stainless steel liner, and it does not produce harmful substances, so it is a safe and reliable liner material. In addition, oil stains, etc. that appear during barbecue, long-term use of stainless steel liner, easy to yellow, affecting appetite. Compared with the enamel liner, it is easier to clean, and the oil can be removed by wiping lightly with a rag.