The Anagama kiln is an ancient
type of pottery kiln brought to Japan from China via
Korea in the 5th century.
The term Anagama
(a Japanese term meaning "cave kiln") describes
single-chamber wood-fired kilns built in a sloping
tunnel shape with a firebox at one end and a flue at the
other.
Anagama fired pottery depends
on chance kiln events -– in particular, the behavior of
wood ash circulating at high temperatures causing glaze
to form on the clay surfaces in irregular patterns.
Although seemingly random, the surface graduations of
color are achieved only through delicate planning and
some years of experience. I use Ohia (Metrosideros
Polymoropha) as fuel. Salt is introduced to the kiln
through clay-filled Opihi (limpet) clam and abalone
shells used as stilts and spacers to prevent the pots
from fusing to the shelves and each other.
Each firing takes between 96
and 110 hours to complete, using over 3 ½ cords of wood.
The finished pot displays the interaction between earth
(clay), fire and wind (flying wood ash), and the results
are truly a collaboration between the potter and nature.