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My Sunfire Red and Brick Red mug has pieces flaking off. Why?

With time and continuous use, the glaze on your Sunfire Red and Brick Red mugs may flake off.

Our Sunfire Red glaze and Brick Red glaze with it as a base have a distressed look with dark brown edges. It's natural for this glaze to gradually lose a few red pieces here and there if you use your mug almost every day; however, this typically takes years and years of repeated use. Newer mugs typically don't have this problem. Please note that our glazes and materials are non-toxic.