The mugs become easily stained inside and the glaze on the outside wears off to a dull finish.
Jin Designs replies: 13/12/2019
Hello Frances, thanks for your feedback. I'm sorry your mugs are getting stained. This is a common problem with china but it can be removed. The most popular methods are baking soda. For the glaze, the manufacturers recommended hand washing to keep the colour. Sometimes dishwashers can be too abrasive especially with chemicals. I hope this helps. Please message me if there's anything else. Jinny