Abstract: An apparatus, system, and method for forming an improved barrier between a pan, such as a food service pan, and a substance, such as food, contained therein using a contour fit pan liner are provided. The apparatus includes a pan liner having a contoured bottom edge that is custom fit within a food service pan to cover an interior surface of the pan. The contoured edge of the pan liner conforms to the shape and size of the food service pan and does not have any dog ears, ears, or tails that are typical of conventional pan liner. The contour fit pan liner system includes a pan and a contoured or shaped liner for forming an improved barrier between an interior surface of the pan and food that can be disposed therein using a pan liner having a contoured bottom edge that is custom fit to the shape and size of the pan.