A mixture of clay and sand is shaped by rotating a board with a cutout outline that is a cross-section of the final shape. This technique is used to make tea kettles for the tea ceremony, temple bells and other circular, symmetrical objects. After removal from the mold, a kettle can be heated and painted with lacquer and ohaguro (a coating used in the old days to blacken one's teeth) to produce a uniquely beautiful finish.
How to make
"What Are Traditional Crafts? -A Guidebook to Seeing, Learning, and Enjoying-" Edited by the Japan Kogei Association Eastern Branch. Published by Unsodo ／ List of works English translation: Kazuko Todate (Art critic / Art historian)