Rub the small ball onto the side on the roll, where it has broken apart. Rub until the small bits fall off and you are left with one long line. Pull, and you should have a full sheet of tin foil.

Whether it’s a fear of food spilling over onto the oven floor or a desire to keep a brand-new appliance sparkling clean, it might seem like reaching for a roll of aluminum foil is practical.

Here’s what we learned. “Aluminum foil is generally safe for cooking at regular oven temperatures,” said Darin Detwiler, chair of the National Environmental Health Association’s Food ...

Rub the small ball onto the side on the roll, where it has broken apart. Rub until the small bits fall off and you are left with one long line. Pull, and you should have a full sheet of tin foil.

For the most part, cooking with aluminium foil isn’t something you need to worry about. “Aluminium foil is generally safe for cooking ... expel small amounts of aluminum, but people with ...