Can withstand both hot and cold foods. Made from 98.5% aluminum with the balance made up of iron and silicon, which are added to give greater strength and puncture resistance. And you can feel good about using it because Reynolds® aluminum rolls are made with 100% recyclable aluminum. Check to see if recycling facilities exist in your local area. • Can withstand both hot and cold foods. • Made from 98.5% aluminum with the balance made up of iron and silicon. • Greater strength and puncture resistance. • Get the right size piece of baking foil every time with the Easy Tear Edge, built right into the package for convenience. • Used for grilling to lock in flavor and for freezing to prevent freezer burn. Can withstand both hot and cold foods. Made from 98.5% aluminum with the balance made up of iron and silicon, which are added to give greater strength and puncture resistance. And you can feel good about using it because Reynolds® aluminum rolls are made with 100% recyclable aluminum. Check to see if recycling facilities exist in your local area. Material(s): Aluminum Foil; Length: 1,000 ft; Width: 12"; Product Packaging: Roll.