Since the 9th year of the Heisei era (1997), we have been producing a product called "Kasama Clay" at our current clay refining plant. Kasama Clay, containing a high level of iron and characterized by its red-brown color and excellent plasticity, has contributed to the advancement of the local wheel throwing technique. We produce approximately 55 tons annually, which is utilized both locally and nationally.

Process of refining
"Kasama Clay"

  • 1Excavation of the clay base

  • 2Drying the excavated clay

  • 3Removal of wood roots and large stones

  • 4Further removal of finer stones

  • 5Mixing the clay into a liquid state

  • 6Removing excess moisture

  • 7Shaping the clay in a vacuum

  • 8Finished product