Pounding our the paper, Kurotani paper

Special paper is pounded by hand for about one hour; this is done in an automated mortar for regular paper. It is then put into a machine called beater to produce a pulpy, fibrous material. The root of the sunset hibiscus, which is the raw material for the starch adhesive which binds the fibers together, is added after rinsing in water and pounding with a wooden mallet on top of a stone.