Raku is a very unique ceramic firing process. Glaze formulas often contain a lot of copper. A raku piece is brought to approximately 1800F to 2000 degrees in a short period of time during which it is possible to watch the glaze mature. At that time, the piece is carefully removed, with long tongs, and placed in a trash can of leaves sawdust and paper which ignite by the heat of the piece. The lid is then placed on the can that is left to smolder causing a loss of oxygen in the chamber which affects the copper in the glaze. The result is a wide range of colors on the surface of the piece. No two pieces are alike.
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FAQ #2 How to Pit Fire
FAQ #3 Care for Raku