Parchment paper is a type of paper that is treated to make it heat-resistant and non-stick. It is commonly used in baking to line trays and pans, preventing food from sticking and making cleanup easier. Parchment paper can withstand high temperatures, making it suitable for various cooking methods, including roasting and baking. In addition to baking, parchment paper is also used for wrapping food, such as fish or vegetables, to create a steaming effect. It is available in rolls or pre-cut sheets and is often used in professional kitchens as well as home cooking for its versatility and convenience.