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Reduction firings can bring out some wonderful colors in pottery. Many high-fire glazes are formulated for reduction, and will not work successfully in neutral or oxidation firings. These brilliant colorings and effects are created when metallic oxides in glazes change form.
Each fuel-fired kiln will fire a bit differently, so expect to work with yours over a period of time before you find what works best with it. Even so, the basics are the same.
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