Bizen Yaki Tsubo Vase | Sangiri & Yohen Fire | Double Loop Handles | Japanese Ikebana Stoneware | Wabi-Sabi Unglazed Pottery

The Language of Fire: A Bizen Tsubo That Speaks Without Words

In Okayama Prefecture, deep in Japan's Chugoku region, there is a village called Imbe (伊部) where potters have worked the same iron-rich hiyose clay for over a thousand years. They call what comes out of the kiln keshiki — 景色, meaning scenery — because every surface tells the story of its time inside the fire. This tsubo is one such landscape.

Form & Silhouette The vessel follows the classic tsubo archetype — a cylindrical body with a subtly swelling shoulder, a short gathered neck, and a generously rolled tamabuchi rim that invites the hands. Two small loop handles (mimi, 耳 — literally "ears") are pinched and applied at the widest point of the shoulder, a feature seen on Bizen flower vessels from at least the Muromachi period (14th–16th century), when tea masters like Sen no Rikyū began placing Bizen ware at the center of wabi aesthetics.

The Firing: Sangiri & Yohen No glaze touches this piece. Instead, an unexpected change in color is caused by the absence of oxygen during reduction firing — when the vessel is buried in ash, the reaction between iron in the clay and carbon from the embers produces colors ranging from black to grey to blue to reddish brown. This is sangiri (桟切り), and it dominates the lower body here in a moody gunmetal wash. Above it, the clay opens into deep iron-red and amber — the yohen (窯変) fire transformation unique to that moment in that kiln. 

The exact patterns on Bizen ware differ depending on firing and ash contact, so even items of the same form never come out exactly the same — which is part of their charm. The piece you see is the only one like it that will ever exist. 

Clay & Kiln Bizen ware is one of Japan's Six Ancient Kilns, alongside Seto, Tokoname, Shigaraki, Tamba, and Echizen — celebrated for preserving traditional pottery techniques passed down through generations. The raw material, hiyose (火襷土), is drawn from beneath local rice paddies — dense, iron-loaded, and completely unglazeble by intention. Pottery pieces are placed in a noborigama climbing kiln set up on hillside terraces in step-like fashion, using pine wood as fuel. The position of each piece inside the kiln changes the firing conditions, so nobody can predict exactly how it will turn out. 

For the Collector & the Home This tsubo is ideally sized for an ikebana arrangement — a single branch of plum blossom in winter, one stem of Japanese susuki grass in autumn. But it works equally as a pure sculptural object: placed on a shelf, sideboard, or entry alcove (tokonoma), the interplay of gunmetal grey, iron red, and warm amber creates a meditative focal point entirely in the wabi-sabi spirit.

A potter's seal is impressed on the base.