Tag: copper red; flambe; oxblood; sang de boeuf

Popular mid-range and high-fire glazes featuring very small percentage of copper that, under correct light reducing conditions, gathers into colloidal particles of red copper oxide, producing bright rich red and red-purple colors. For good copper reds, start reduction at cone 012 or 010, and maintain partial up to maturation, with oxidation cleanup at end but no glaze reduction. Source: Clay: A Studio Handbook

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