Formal to casual, stylish to rustic, each piece we craft is designed to capture the spirit of your life. Able to withstand temperatures up to 1000 degrees F, Wilton Armetale® Serveware is ideal for your cooking needs. Food stays hot longer and perfect for oven, stove or grill. Designed and crafted by hand, these beautiful products were made to last a lifetime. The Medium Oval Au Gratin is designed specifically for the grill but can also be used on the stovetop or in the oven. Grill anything at your next family cookout or Sunday morning grilled breakfast. Hand wash.