A gastronorm pan is a type of container commonly used in the foodservice industry for holding, storing, and serving food. It is designed to fit into standard-size openings in commercial kitchen equipment, such as ovens, refrigerators, and steam tables. They are sized according to the GN (Gastronorm) standard, which is based on a system of fractional sizes. Gastronorm pans can be used for a wide range of food items, from hot or cold dishes to baked goods or salads, making them a versatile and indispensable tool in commercial kitchens.