Product review (4 stars): ... I vowed never to let my new oven look like our old one
After remodeling our home I vowed never to let my new oven look like our old one. The very first time I used the oven to cook a frozen pizza a bunch of the toppings fell to the bottom & created a mess. That's when I decided to buy these. They work as designed & have caught many spills. They wipe clean very easily. The only negative is the smell they produce while cooking. It's a plastic burning/chemical type smell. It goes away after the oven has been on a while & doesn't make the food taste funny. I will never use my oven without them!