WILTON-Silicone Baking Accessories: Standard 6 cup Muffin Pan. Silicone is the Wonder Kitchen Tool: it can be used in the oven (up to 500F/260C), toaster over, microwave, refrigerator and freezer. These silicone utensils are the perfect tool cold foods: Jell-O, ice sculptures, Candies and hot foods: cake, muffins, bread, pies, main and side dishes and so much more!