Steel baths are considered more durable and are much stronger than acrylic baths, and are even stronger than a cast iron or stone bath. Steel baths are made from a sheet of steel that is pressed into shape, cleaned, and then an enamel coat is sprayed on the steel to create a hygienic and durable finish. The bath is then fired at high temperatures, using the same process as toilets or basins, to make a strong bond between the steel and enamel. Steel-enamel is a good match for similarly-glazed porcelain toilet and basins also. Steel is a non-porous material, and is therefore just as good at preventing bacteria or mould growth. Steel is an eco-friendly choice, as it is a natural raw material; it is 100% recyclable and a better environmental choice than an acrylic bath, which is produced by burning fossil fuels. Steel also retains the heat of the water which can make filling a bath more economical as less hot water is needed and the water will stay hotter for longer.