Why is Aluminium good for making pots?

Aluminum itself has the characteristics of light weight, good heat transfer, oxidation resistance and not easy to rust, so the aluminum pot has the advantages of light weight, good heat transfer, fuel saving and time saving.
Aluminum has a dense oxide film on its surface, which protects the aluminum inside from oxidation.

We should pay attention to the use of aluminum cooking utensils:

Do not use to hold acid, alkali, pickled food, do not scratch the oxide film.

There is a difference between aluminum and aluminum alloys. Aluminum is used to make cooking POTS, soup POTS. Use is not a problem, because the temperature is low, will not precipitate aluminum ions. But can not do the wok, because the temperature is high, and there is oil, 塩, sauce and vinegar, will precipitate aluminum, affecting health. But aluminum alloy can do wok, because aluminum alloy structure is stable, basically will not precipitate aluminum.