Rokuro 轆轤
Shaped by hand on a potter's wheel.
Yōhen 窯変
Written as “kiln change”, Yōhen refers to the variations in colour and texture on the surface of ceramics that happen during the firing process. This is a feature found across various Japanese pottery styles including Tokoname, Shino, Bizen and Tenmoku. Within Tokoname-yaki, the typical two-tone Yōhen effect can be achieved by firing the ceramic item for a second time in a reduction furnace, but by partially burying it in rice husks or ashes, only the exposed part changes colour.
Kangen Shosei 還元焼成
Reduction fired: there is not enough oxygen in the kiln for complete combustion, causing red iron oxide (Fe₂O₃) in the clay to turn black (FeO).















