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Reduction is the process in Raku firing where oxygen is limited, causing the glazes and clay body to draw oxygen from within, thereby affecting the color and finish.

Bisque firing is the initial kiln firing of the pottery to harden it before glazing and the Raku process, creating a porous surface that is ideal for glaze application.

Oxidation occurs when the ceramics are introduced to an environment with ample oxygen, leading to brighter colors and a glossy sheen on the glaze.

The Raku kiln is a specially designed kiln for reaching the high temperatures quickly and having the capability to be opened while hot for the rapid removal of the ceramic ware.

Raku glaze chemistry involves understanding the reaction of glaze components at high temperatures and the influence of reduction or oxidation on the final appearance of the ceramics.

Glaze application refers to the process of coating the pottery with a thin layer of glaze before Raku firing, which melts and forms a glass-like surface during the firing.

Thermal shock refers to the stress endured by ceramic ware during the rapid temperature changes in Raku, which can lead to unique crackle patterns in the glaze.

Quenching is the process of rapidly cooling Raku ware by submerging it in water post reduction, which halts the post-firing reduction effects and can set the colors.

Post-firing reduction is a stage in Raku where the hot ceramics are placed into containers with combustible materials to create a smoking environment that affects the surface.