It is often used in food preparation and packaging to prevent food from sticking to packaging and to provide a barrier against oil and grease. Coated paper is typically made from wood pulp and is coated with a thin layer of paraffin wax or other materials that prevent oil from penetrating the paper. It is commonly used to wrap sandwiches, burgers, and other fast food items, as well as to line baking trays and cake tins. Coated paper is a vital tool in the kitchen and food industry, helping to keep food fresh, clean, and hygienic.