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.