The practical material of the cup makes it perfect for both everyday use and parties or for picnics. Please note that the products are not suitable for the microwave. At RICE we spend a lot of resources staying on top of the latest rules and regulations regarding food safety and sustainability. Therefore, we make sure our melamine is of the highest quality, reusable and free of bisphenol A and phthalates - we love this material and the many possibilities it holds. It lasts for a long time and can go in the dishwasher over and over again... We don't recommend you use food or liquids above 70 degrees Celsius with your melamine.