How do I keep my aluminum foil from getting rusty?

Aluminum foil doesn't rust in the traditional sense, as rust is an oxidation process that affects iron and not aluminum. However, aluminum can corrode or tarnish over time. To prevent this, store aluminum foil in a cool, dry place away from humidity. Avoid stacking it with acidic or corrosive materials, and keep it in its original packaging or a sealed container to protect it from moisture and air exposure. Regularly check for any signs of corrosion and replace the foil if necessary.