Food - Drink
Why You Should Stop Lining Your Oven With Aluminum Foil
By WENDY LEIGH
Aluminum foil is one of the most versatile kitchen items; it comes in easy-to-use rolls, is always relatively affordable, and is sturdy enough for both leak-free food storage and high-heat cooking. However, just because foil can stand up to very hot temperatures doesn't mean you use it liberally to line the bottom or racks of your oven.
Aluminum foil is generally safe for cooking, despite evidence that it can leach into food when cooking at very high temperatures. The real caution about using foil is less about the health of your body and more about the health of your oven, since foil can damage the oven's enamel surface, resulting in chips, scratches, and more.
High temperatures can even melt foil when it comes into contact with hot surfaces, permanently damaging your oven, and foil can also block air vents and ruin the heat distribution, resulting in burnt, unevenly-cooked foods. For the sake of your oven, put a baking sheet on the lower rack to catch drips and spills, instead of using foil.