Bisque

Bisc: A general term for used to describe a prelominary firing of unglazed wares. Biscuit firing: A preliminary firing of unglazed ware beyond the point of ceramic change, but below the point of fusion, so that the ware remains porous. Biscuit may refer to finished unglazed wares, despite the fact that these may be fired to vitrification. Bisque: Generally refers to unglazed ware fired to maturation (and in some cases, to vitrification)before the application of a glaze whose maturing temperature is lower than that of the body.