Anagama firing
Anagama firing is a traditional wood-firing technique used in Japanese ceramics in which pottery is fired in a single-chamber kiln built into a hillside. The term anagama (Japanese: 穴窯, literally "cave kiln") refers to the kiln's tunnel-like structure.
Anagama kilns are typically constructed from refractory bricks and built with a slight upward slope. The firebox is located at the front of the kiln, while pottery is stacked deeper inside the chamber. During firing, wood is continuously fed into the firebox, allowing flames and ash to pass through the kiln and around the ceramic pieces.
One of the distinctive features of anagama firing is the natural ash glaze that forms when wood ash settles on the surfaces of the pottery and melts under high temperatures. This process produces varied textures, glassy surfaces, and natural color effects that are highly valued in traditional Japanese ceramics.
Firing in an anagama kiln can last several days and requires constant attention from the potter. The long firing cycles and interaction between flame, ash, and clay create unique results that cannot be precisely controlled, making each piece distinctive.
Anagama firing has been historically associated with several Japanese ceramic traditions, including Bizen ware, Shigaraki ware, Iga ware, and Tamba ware. The technique remains in use today among both traditional and contemporary potters.
