A magic mug, also known as a heat changing mug, is a mug that changes colour when it is filled with a hot liquid. This effect is created by using thermochromic ink. These mugs are often manufactured and sold as memorabilia. For example, a mug may reveal a picture of the town or monument where it was sold.
Ceramic mug with painted black exterior
When filled with hot beverage, black paint fades to reveal images
Dish washing & microwaving not recommended, hand washing advised
Mild detergent, no bleach, recommended to preserve quality
Measures 3.75 inches tall