What did Saggar / Refractory Firing Container look like?

A box-shaped container made of refractory clay with a lid. Greenware is placed inside the saggar; multiple saggars are stacked inside the kiln.

How did Saggar / Refractory Firing Container work?

Glazed greenware → placed in saggar → stacked and loaded into kiln → saggar isolates ware from direct flame contact and ash fallout → heat conducts through the saggar wall → ware is fired in a clean environment.

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Saggar / Refractory Firing Container

A sealed refractory container in which ceramic ware is placed during firing to isolate it from smoke, flames, and ash, ensuring a clean glaze surface.

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Scientific Principle

Heat conduction: the saggar wall conducts heat for firing. Physical isolation: solid/gas separation protects the glaze from contamination.

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Saggar / Refractory Firing Container

Scientific Principle

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