The patty paper do an excellent job of keeping your burger patties neatly separated while stored in the freezer, preventing the meat from sticking together. Easy separation of burger patties. These baking cake parchment paper that wont tear and 100% waterproof,oil-proof. This ensures that your food remains fresh, tender, succulent and full of flavor. These humburger press sheets can withstand temperatures from -40 F to 450F(232) in appliances such as an oven, a microwave oven, a freezer, work as parchment paper and liner in baking molds. It handy for cold cuts, sliced cheeses, frozen steaks, salt water taffy, chocolates, caramels and more. Material: environmental grade food paper Package included: 500pcs Baking paper,Diameter 11CM