This temperature reactive mug has a black matte finish when it’s cold/empty. When it comes into contact with a hot beverage, the mug reveals a signature print when having your hot drink of choice.
• Ceramic-not to be used in dishwasher
• Black matte finish when cold/empty
• Reveals the print when exposed to hot liquids
Note that in some instances the coating might not be 100% opaque and an outline of the design might peek through a little. Also, you shouldn’t put the mugs in a dishwasher since it can damage the coating.