The origins of the Japanese ceramics tradition Raku Yaki go back to the founder Raku Chojiro, who lived in Japan in the 16th century and who, together with the famous tea ceremony master Sen No Rikyu, hand formed tea bowls that reflected the spirit of the Zen buddhism and the tea ceremony that is closely related to it.
It was only since the 40's of the last century that this ceramic technique became better known in the western world - thanks to Bernard Leach amongst others.
Fired between 950°C and 1100°C, the glowing pots are taken out of the kiln with long tongs and put into easily inflammable material such as sawdust, hay or straw. This process blackens the parts of the pot not covered by glaze. The temperature shock also results in the typical cracks (Craquelé) in the glaze, which can be influenced during the process in size and complexion.