I had purchased these grill mats before, and loved them. Food really didn't stick and I was able to reuse them over and over, as long as I was careful to wipe them down when I was finished grilling. The last time I bought these mats, they have only been able to be used once or twice before they were trash. All my food stuck, including fatty meat like burgers and sausages. I'm going to look for a new brand.