Product review (1 stars): Ruined my cookies!
Today I decided to bake some cookies that I have made for 70 years, thousands of them. I have a six months old Kitchen Aid induction range and the oven is a total nightmare to clean. So I was happy to find this product to help cut down on drips and splatters. I placed the liner on the bottom rack and slightly trimmed it to leave an open space all around. Well, my cookies would not bake properly. So I used my oven thermometer to check the temperature and it was only 210 degrees. I turned the oven off and on, reset the range and nothing worked, the temperature would not reach anywhere near the set amount. I started to get hot under the collar because I thought my expensive range was at fault. Then I decided to remove the liner and set the oven temperature to 350 degrees. When the oven showed the temperature was reached, I checked the oven thermometer and the temperature was right at 350 degrees. Baked another sheet of cookies without the liner and they came out perfect. That means the liner blocks the distribution of heat and is useless.