The initial kiln firing process that transforms fragile, bone-dry greenware into durable, porous ceramics. This firing is typically done at a lower temperature to drive out chemical water and sinter the clay particles. The resulting porous state allows the piece to absorb water from liquid glazes, ensuring an even coating for the final glaze firing.
Heard on the job
Load the kiln carefully for the biscuit firing, as the bone-dry mugs are extremely brittle right now.
Also heard as
- bisque firing
Do not mix it up with
- Firing: Biscuit firing is the specific first low-temperature firing, while firing refers to any heat treatment in the kiln.