The producing process employed winding straw ropes around wooden mandrel, heaping up coarse-grained barren soil followed by fine-particle finishing soil and molding by a pallet or the fingers.
心木に藁縄などを巻きつけ、粒子の荒い荒土から、細かい仕上げ土へと順次盛り上げ、箆（へら）や指で造型する。