Raku is a pottery technique that has it’s origins in 16th century Japan.
In raku, the pottery may be loaded into a cold kiln, but are often preheated and loaded into a hot kiln.
The firing proceeds at a rapid pace with the pottery reaching the desired temperature in as short a cycle as 15 to 20 minutes.
Glaze maturity is judged by the trained eye without the use of cones or, measuring devices.when the firing is determined to be completed, the pottery, is immediately removed from the kiln.
Since at this point the glaze has melted, tongs or other lifting devices are used.
This is the stage in the process where traditional and contemporary raku differ in technique and treatment.
In our western version the pottery is treated to an after firing reduction phase. The pottery is put into a container with combustible material such as sawdust, or leaves and allowed to smoke for a certain length of time.The carbon rich atmosphere reacts and affects the glazes and clay and produces unique effects on the surfaces of the pottery.