A non-stick surface is a type of coating applied to cookware, such as frying pans and baking sheets, to prevent food from sticking during cooking. This feature makes it easier to cook and clean, as food slides off easily without the need for excessive oil or butter. Common materials used for non-stick coatings include Teflon and ceramic. Non-stick surfaces are popular in both home and professional kitchens. They are especially useful for cooking delicate foods like eggs and pancakes, which can easily break apart if they stick to the pan. However, it's important to use non-metal utensils to avoid scratching the coating and damaging its effectiveness.