Heat Resistant Range: These silicone candy molds can withstand temperatures from -40°F to 464°F, so they can be safely used in ovens, microwaves, dishwashers, refrigerators and freezers. Multiple Use: Our square silicone molds are suitable for making truffles, gummy, candies, chocolates, fudges, butters, Whiskey ice cubes, brownies and more.