This great ice ball tray can be used in the oven up to 464 degrees Fahrenheit, while it is also safe in the freezer, with minimum temperature -40 degrees. This way, you may use this ice ball maker for many different kitchen projects; great for elegant slowly melting round ice balls for your juice, whiskey, sodas, beverage and more; ideal for popsicles or as a baking silicone tray, you can even make cake balls with it and it is easy to clean!