Unbreakable plates produced in strong scratch resistant plastic. Can withstand both microwave oven and dishwasher. However, with a long exposure time in the microwave, there is a risk that the products may be damaged or deformed. Please bear in mind that the use of strong coloring spices, e.g. turmeric, paprika, curry etc. in combination with fatty foods and high heat can leave a discoloration on the plate.