These are also ideal for molding butters, spreads, freezing water or juice, baking brownies, cookies, mini cakes, and more. Like FDA-approved silicone, European-grade silicone is subjected to a high standard of testing to deliver a top-quality product with more desirable benefits. Mrs. Anderson’s Chocolate Molds will maintain their elasticity and flexibility, and bounce back to their original shape. Temperature safe from -90-degrees to 570-degrees Fahrenheit, they are stronger and more durable to withstand everyday stress and strain. Safe for use in the freezer, oven, microwave, and dishwasher. Easy step-by-step instructions are included.