Why Baking Sheets Are So Dirty. There are so many reasons why it’s important to thoroughly clean your baking sheets. “Old oil can go rancid and will make your food taste bad, ...

Emboldened, I set up my casserole in the oven and bravely clicked “broil.” I eagerly awaited crispy edges and bubbly cheese, but nothing happened. The oven actually didn’t feel very hot at all. The ...