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What is Raku?

Raku is a ceramics method resulting in the gorgeous metallic and iridescent finishes you see on the pieces above. Raku is more than just a firing process though. It is a specific type of clay, glaze, building process and firing method all culminating in an art form used to express the profoundness of the Zen mind. It is a tradition steeped in spirituality, culture and profound contemplation. This is what needs to be understood if the true spirit of raku, Zen, and the wabi aesthetic, which can be understood as the avoidance of luxury and falsity, is to be correctly transmitted, understood, appreciated and kept alive.

Name: Mike - Glaze: Uguisi Nightingale

Paul Soldner is often considered the father of American raku. A somewhat apocryphal story is often told about a gathering of friends and students at his studio where he removed a glowing pot from the kiln and placed it on a brick. The pot was bumped accidentally, and it rolled down a hillside and into a pond. Later, when the pot was retrieved, someone observed that the colorful glaze pattern resembled pots that the Japanese were making and calling raku. In truth, this was quite incorrect since Japanese raku was never brightly colored. Historically, in Japan, Raku potters endeavored to make teabowls with subdued red or black colors to match the spirit of wabi present in the traditional tea ceremony. Nonetheless, from that time forward, Soldner and his students began adding the process known as post-firing reduction after pots were removed red hot from the kiln. It is not known when or where the practice of placing the red-hot ware into a sealed container to cool in a reduced oxygen environment originated, but it is clear that this is a Western modification of the raku process and certainly not something ever done by Chojiro or any of the subsequent 16 generations of Japanese Raku Masters.

Raku is the only ceramic which is removed from the kiln when it is red hot. I hold the temperature at 1800 degrees Fahrenheit for about five minutes, then remove the pottery to a metal trash can into which I have placed varying amounts of newspaper and combustibles. The fire that results will exhaust the oxygen in the can and then, in order to continue smoldering, will draw oxygen out of the chemicals in my glazes. As oxygen is withdrawn from the copper carbonate, silver nitrate, etc., the copper and silver are released to attach to the surface and give the color and metallic effects unique to raku fired pieces.

Please note as you view the pieces that the raku firing method is used to create pieces of decorative ceramic art which are always one-of-a-kind originals.

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Raku Glaze Options

Emerald
A deep shade of green yielding a smooth glossy surface with a beautiful crackle finish.
Celedon
A classic creamy shade of light green with great crazing on the surface.
Gator Skin
The name says it all.  Orange and gray-blue tones with a reptilian finish.
Raku Red
A gorgeous deep crimson red with an eggshell surface.
Raku White
Brilliant white with a black and gray crackled surface.
Star Night
Beautiful blues and greens with celestial swirls and bursts.
Awabi hell
An all-purpose glaze for Raku work yielding an iridescent abalone-type effect that reacts well with various oxides.
Uguisi Nightingale
This glaze can produce varying shades of iridescent blue, green and purple depending on the thickness of application and firing conditions.
Raku Burst
A brilliant metallic glaze with flashes of blue, purple, gold and copper.
Shinju
A deep red textured glaze often producing maroon and white speckles.
White Matt
A light, dry, textured glaze with a consistent light colored finish.
Tutti Frutti
A gloss surface resulting from copper, colors range from greenish yellow to purple and maroon.
Copper
A spectacular metallic iridescent glaze.
Bronze
An extremely striking patterned glaze. Smooth surface, metallic dark and light copper/bronze color. Can give the appearance of a new penny on the background of an old penny.
This web site contains photographs of Diana Langell's artwork, including decorative paintings, murals, trompe l'oeil paintings, kid's rooms & nurseries, faux finishes, glass painting, painted furniture, life casting sculptures, pregnancy life casting kits for sale, belly bowl sculptures, raku pottery & glazes, hand & foot prints in clay, paw prints, a short history of raku from its roots in the Zen tea ceramony, and links to other creative spirits close to my heart. A biography of the artist, and info on her creative process is also included, along with how-to make pregnancy life castings and info on commisioning custom artwork from Diana Langell.

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