Temperature resistance, The donut pan is safe at temperatures between -40 and 230 degrees Celsius, suitable for microwave, freezer and dishwasher. The silicone trays are non-stick, the dough wont stick in the cavities, and even if it did you could use some warm water for easy cleaning. Thanks to the flexible silicone, the donuts are easy to remove by simply opening the bottom of the mold and sliding the donut out of the expanded center. Aside from donuts, the molds let you create anything you want from ice cream rings and chocolate cake to bagels, muffins, frozen treats, cupcakes or anything you want. Specifications: Package: 2 packs of Color: Orange Green Feature: Environmentally Friendly, BPA Free Material: 100% food-safe silicone Temperature safe: -40 to 230 degrees Usage: 1. Place the tray on a baking sheet, fill and bake according to your recipe instructions. 2. After baking, the bottom of the pan will pop up and the donut will slide off the extended center. 3. Stop baking, put the bowl in the dishwasher or clean by hand Note: 1. Please do not use cold water to clean it immediately if it is just taken out of the oven. Just to extend the life. 2. Do not use knives or other sharp tools on silicone molds. Avoid tension and pulling. Keep away from gas and fire.