Planet Heat-Changing Mug

Pore over your pour-over! This mug features beautiful original portraits of our solar system, and every time you enjoy a hot cup of coffee or cocoa, you can learn about each planet. As 19th-century astronomer Maria Mitchell wrote, "You cannot study anything persistently for years without becoming learned." Holds 12 oz / 250mL. Transforming mugs are not dishwasher safe but are microwave safe.