Silicone Mold are Freezer, Microwave, Oven Safe; The Temperature used for the ice tray should be under 200 degree Silicone ice cube tray is flexible for easy release, so no more struggling to get your ice cubes out - quickly and easily pop them out Makes 24 gorgeous square beverage chillers at a time, Big ice cubes keep your drink colder longer, so this ice cube tray will keep your drink cool without diluting its flavor. Then add pure water in the ice tray, and then put it into the refrigerator. After use, it should be cleaned and stored in a clean and dry place away from direct sunlight.