Printerpix Photo Collage Mug

The mug is coated with a special thermochromic material that is opaque black at room temperature. When you pour hot liquid—like coffee, tea, or hot cocoa—into the mug, the heat causes the coating to become transparent, revealing the photo collage underneath.

No, this mug should be hand-washed only to preserve the integrity of the heat-sensitive coating. We also recommend avoiding the microwave, as the high heat can damage the special finish over time.

When the mug is at room temperature, the exterior is a solid black color. While you might see a faint outline of your design depending on the lighting, the photo collage is designed to be hidden until hot liquid is added.

For the best results, use high-resolution images with good lighting. Since the collage layout involves multiple photos, clear, sharp images will ensure that even the smaller pictures in the arrangement look crisp once revealed.

Yes, as the mug cools down and the liquid temperature drops, the heat-sensitive coating will gradually return to its solid black state, hiding the image again until the next hot drink.