Cold porcelain is an inexpensive, non-toxic, easy-to-work-with material.
Despite its name it is not porcelain, its main components are cornstarch and white glue, but can also include low quantities of oils and glycerol which promote a porcelain-like, smooth texture. Because most of the constituents are biodegradable, lemon juice and sodium benzoate are sometimes used to prevent the growth of bacteria and fungi.
Originally from Argentina, it can be made at home very easily with or without applying heat to the mixture. Once sculpted into a finished craft, it does not require heat in order for it to cure, instead hardening by exposure to fresh air. It can be used for innumerable small projects, however, once cured it is easily softened or even dissolved by heat or water, thus it is not suitable for making crockery.