The two essential features of a cookware are that it should have good thermal conductivity and that it should be chemically unreactive with the ingredients that are cooked in it. Metallic cookware are found to possess these essential features and hence are the most widely used forms of cookware across the globe. They are generally made from a narrow range of metals. Most metals that exhibit good thermal conductivity are too reactive to be used in food preparation. Hence selection of the right type of metal for cookware is crucial. The most popular metals that find usage in cookware are:
Aluminium
Aluminium is a lightweight metal which exhibits very good thermal conductivity. The main characteristics of aluminium are that it does not rust, and is resistant to many forms of corrosion. Being a soft metal, it is commonly alloyed with magnesium, copper, or bronze to increase its strength. It is generally available in sheet, cast or anodized forms. Sheet aluminum which is spun or stamped into form is commonly used for making baking sheets, pie plate, cake pans, steamers, pasta pots, skillets etc. Cast aluminium produces a thicker product than sheet aluminium and is...