What is the best material for non-stick pan?

If the non-stick pan is made of iron, you should know that there are two kinds of pig iron and wrought iron. Pig iron products are thick and heavy, but they have large heat capacity and are not easy to overheat. Wrought iron products are thin, have small heat capacity and are easy to overheat. If you choose aluminum products, the advantages are light weight and fast heat conduction, but the disadvantages are easy to react with strong acid and alkali foods and short service life.