Second firing in faience production, where the decoration consisting of high-temperature colours is fused with the white glaze. It is also sometimes called “glaze firing”. In faience production, glost firing is always preceded by biscuit firing, which transforms the vessel into the biscuit state.

Translation Sandy Haemmerle

German: Scharffeuerbrand

French: Grand feu

References:

Blondel 2001
Nicole Blondel, Céramique, vocabulaire technique, Paris 2014, 39, 160, 258.