Aluminium foil is a thin rolled sheet of aluminium that claims to be a common kitchen staple. Cooking in the oven with aluminum foil is not only safe, but it helps transfer heat easily and makes cleanup easier.
Aluminum foil is more flexible and stronger than tin foil. It reflects heat and can usually withstand the highest baking temperatures of most residential kitchen ovens, making it an excellent baking companion. If you want to line, wrap, or cover your baking sheet to keep moisture in, then aluminum foil is your best bet.

How to Use Aluminum Foil in the Oven
1. Line a baking sheet and pan.
Using foil-lined baking sheets and pans is a great way to ensure easier cleaning. After baking cookies, bread, or other foods, simply slide or lift the foil out of the pan to remove the baked items.
2. cover vegetables
Covering the pan with aluminum foil helps lock in the moisture while baking. Laying loosely on the plate or covering it with a sheet of foil will keep the top from browning while the rest of the plate continues to bake. If you want more steam during baking, simply seal the dish with an aluminum foil lid.
3. Disposable baking pan
Disposable baking trays such as aluminum trays and trays can easily replace metal trays. Like aluminum foil, they can withstand any temperature an oven can apply, and they have thermal conductivity properties that help transfer heat to food easily.
Why can't you use aluminum foil as an oven liner?
It may be attractive to use aluminum foil to keep the oven clean, but lining the oven with aluminum foil increases the heat intensity of the oven surface, which can lead to surface damage such as scratches or chips on the porcelain surface and damage to the heating elements. It even stops cooking.
