Worlds of David Darling
Encyclopedia of Science
Home > Encyclopedia of Science


Heating of ceramics until they are chemically changed, the process prevents a return to the plastic state. Many ceramic clays contain matter that must vitrify (fuse) to render the ware non-porous. This may require temperatures of up to 1,450°C (2,650°F). Firing is done in kilns, or ovens.

Related category