What material is the inner pot of the rice cooker made of?

When people cook with an electric rice cooker, they convert electric current into heat energy and heat the rice in the rice cooker through the inner pot of the rice cooker. Since the inner pot of the rice cooker is in direct contact with the rice, non-toxic and non-carcinogenic materials must be selected to ensure that the rice cooked at high temperature is harmless to the human body. Secondly, the inner pot of the rice cooker needs to have fast heat conduction. Let’s take a look at what materials are better for the inner pot of the rice cooker.

Aluminum liner: Aluminum has uniform thermal conductivity, is easy to shape, is more beautiful, and can be composited with other metals or alloys. However, in actual use, the aluminum liner cannot come into direct contact with food and must be treated with surface protection.

Stainless steel liner: The best stainless steel liner is made of 304 special plate. 304 stainless steel has excellent stainless corrosion resistance and good resistance to intergranular corrosion.

Ceramic (purple clay) liner: Purple clay is a type of pottery and is a safe inorganic material. The inner pot made of purple ooze is rich in natural iron and various trace elements such as zinc and calcium that are beneficial to human health. The cooked food tastes good, and the surface is super hard and wear-resistant, acid-alkali and corrosion-resistant, and has good thermal insulation properties. Families who like to stew soup like to use an inner pot made of this material to make soup.

Composite multi-layer material inner pot: As shown in the figure below, the inner pot of this rice cooker is a mixture of pure copper. There are five layers of different materials from the inside to the outside. The inner layer of aluminum alloy can make the rice cooker non-stick and very easy to clean. In this way, the rice cooker can be heated more evenly.

Electric rice cookers on the market are mainly divided into several types, including bottom heating, upper and lower stereo heating, three-dimensional heating and IH electromagnetic heating. Among them, the IH electromagnetic heating rice cooker has the most advanced heating technology, but its price is also the most expensive. In comparison, bottom heating rice cookers sometimes heat the food unevenly, while top and bottom stereo heating and three-dimensional heating rice cookers can ensure better comprehensive heating of the food.