Ready Player One Heat Change Mug

The mug is coated with a thermochromic material that reacts to temperature. When you pour hot liquid into the mug, the heat causes the outer layer to become transparent, revealing the hidden graphics underneath.

No. Because of the specialized heat-sensitive coating, this mug should be hand-washed only. Using a dishwasher or microwave can damage the thermochromic finish and cause the design to stop working.

The design typically begins to reveal itself once the liquid reaches a standard hot beverage temperature, usually around 140°F (60°C) or higher. As the mug cools down, the graphics will fade back to their original state.

This is a standard ceramic coffee mug, designed to hold approximately 10 to 12 ounces of liquid. It features a sturdy handle and a classic mug shape suitable for daily use.

When the mug is at room temperature, the exterior is generally dark, obscuring the hidden artwork. You may see faint outlines depending on the lighting, but the full graphic is only visible once the mug is heated.