Also called a Chinese mortar. It is a kind of balance-type mortar used for crushing raw stones. The water tank is on one side and the pestle head on the other. In some regions, it is also called “Sakonta. In the past, there were more than a hundred water mortars in the Arita area, but since this primitive method was based on natural energy, it has gradually been overpowered by mechanical, steam, and electric power, and is rarely seen these days. (History of the Arita Porcelain Industry)
