Rumina Raku VaseDescription The history of Raku technique of our ceramics dates as far back as the 16th century. Raku pottery is a low firing technique that originated from Japan and traditionally used on ceremonial tea wares. The modern take on this technique is to remove the pottery while it is still bright red, immediately re igniting it at a higher temp and enclose it until it has cooled down. This thermal shock creates beautiful natural crackle patterns, unique