The Ceramic Artists Working in Cathedral-Sized Kilns

In the hills of Shigaraki, Japan, anagama kilns stretch up to twenty metres long, their brick chambers shaped like tunnels carved into the hillside. Firing these kilns takes five to seven continuous days, with teams of potters feeding wood around the clock. The results are ceramics bearing natural ash glazes of extraordinary depth, each piece uniquely marked by its position within the kiln.

The anagama kiln originated in fifth-century Japan and represents one of the oldest continuous pottery traditions in the world. Unlike electric or gas kilns that offer predictable results, wood-fired kilns introduce variables of flame path, ash deposit, and atmospheric chemistry that no potter can fully control. This deliberate surrender to chance is central to the philosophy.

Modern practitioners include American ceramicist Jack Troy, whose writings on anagama technique became foundational texts, and Australian artist Janet Mansfield, who built monumental kilns in New South Wales. In Europe, the tradition thrives in La Borne, France, where a community of potters maintains wood-fired kilns dating to the medieval period.

The physical demands are extraordinary. A single firing can consume ten cords of wood, and the kiln must be fed every few minutes to maintain temperatures exceeding 1300 degrees Celsius. The stoking team works in shifts, monitoring flame colour and cone packs to gauge internal temperature. Sleep is snatched in brief intervals between shifts.

What emerges after a week of cooling is unlike anything produced by conventional methods. Natural ash glaze produces colours ranging from deep olive to brilliant copper. Flashing, where flame directly contacts unglazed clay, creates blushes of orange and scarlet. Each piece becomes a record of its journey through fire.

The economics of cathedral-scale ceramic art are precarious. Wood must be sourced sustainably, firings are expensive, and a significant percentage of work may emerge cracked. Yet the potters who commit to this method speak of a relationship with fire that no other process offers.

Visit https://www.sccp.jp for exhibition schedules at Shigaraki Ceramic Cultural Park. The lesson these kilns teach extends beyond ceramics: that some of the finest things are made not by eliminating unpredictability, but by embracing it.