Safe to use: the muffin tins are made of greaseproof paper and do not contain fluorescent agents. The colour will not fade even after boiling in water for half an hour. Safe and non-toxic. You are welcome to use it. Whether it is oven, microwave, steamer or refrigerator, you can use these cupcake moulds. BAKING GOOD HELPER: Whether you are making delicious cupcakes for your family or hosting a party, these cute baking cups will add more fun to your life. Are you still dreading the clean up after the party? Choose these disposable muffin cups to make your work easier. Suitable for various occasions, such as birthdays, holidays, weddings, anniversaries and other celebrations. VERSATILE FOR MULTIPLE OCCASIONS: You can make cupcakes or muffins or store biscuits, candies, desserts, biscuits, fruits and more. You can also use cupcakes to decorate for weddings, anniversaries, birthdays, baby christenings, graduations, Halloween, Christmas and other parties and events.