The term porcelain refers to a wide range of ceramic products that have been baked at high temp to get vitreous or glassy qualities. Some things are made of porcelain, and others can be made with another material such as cast iron and then coated in porcelain.
Porcelain is a common choice for everyday items in the home, from toilets to sinks, bathtubs and floor tiles. People often choose porcelain in the bathroom (or kitchen) because it is stylish, waterproof and cost-effective