Aluminium used countless objects that simplify as well as increase the quality of our daily life are partly made of aluminum, e.g. cars, refrigerators, kitchenware, electric power lines, packaging for food and medicine, computers, furniture and aircrafts. Though highly reactive, it is often present in cooking appliances because it forms a protective layer when exposed to air. This thin white layer coats the metal. The coating prevents it from reacting with oxygen. The non-toxic nature of aluminium makes it safe to use to make cooking tools such as spatulas and whisks.