If you store your aluminum cans in an aluminum jar, the container will also be covered in aluminum oxide.
This can make the aluminum brittle and hard to work with.
To avoid this problem, you can buy a reusable aluminum container that contains aluminum oxide, which is a lighter, easier-to-use, cheaper option.
In addition to storing aluminum cans at room temperature, aluminum oxide can also be used to store glass, which can also cause problems.
The only way to safely store aluminum cans is to store them in an insulated or insulated-and-tight container that has been thoroughly cleaned, and then seal the container with a tamper-proof sealer.
To learn more about storing aluminum, see our article How to store an aluminum can at room temp.
The top of a sealed aluminum can.