Silicone-coated reusable vegetable parchment instantly makes any baking pan non-stick. Heavy duty, approx. 100-count; approx. 140-sq. ft. Each sheet measures 16Â½" x 12Â¼", just the right size for most cookie sheets and half sheet pans. Recommended maximum temperature for single use: 500Â°F. For multiple uses: 450Â°F. Parchment means cookies and sticky breads will slip right off the sheet when theyâre done. And your pans will stay perfectly clean.Try lining your bread or 9" x 13" pans with parchment, and clipping it to the edges with metal binder clips. After the food is baked, you can use the parchment to lift the bread or cake right out of the pan. In our test kitchen, we reuse each sheet till it falls apart (many times), so this amount of parchment will last you for a VERY long time. Once you've baked with parchment, you'll never want to go without.