Our 11oz heat-reveal mug is coated with a thermochromic black layer over the printed ceramic. At room temperature the cup looks dark; when you pour in hot coffee, tea, or cocoa, the coating turns translucent and brings your photo or illustration into view.

How quickly and completely the image appears depends on how hot the drink is and the temperature of the room. Studio previews illustrate the transition so you can see where your artwork sits on the cup.

Unlike our standard 11oz and 15oz ceramic mugs, heat-reactive coatings are sensitive to abrasive scrubbing and high dishwasher heat. Always check the care instructions on the heat-reveal product page and hand-wash gently to keep the outer finish intact.

If you are giving a heat-reveal mug as a surprise gift, let the recipient know how the cup works and how to wash it—or pick our classic 11oz or 15oz ceramic mug if they prefer a design that is visible on the shelf all day.

Our 11oz heat-reveal mug is coated with a thermochromic black layer over the printed ceramic. At room temperature the cup looks dark; when you pour in hot coffee, tea, or cocoa, the coating turns translucent and brings your photo or illustration into view.

How quickly and completely the image appears depends on how hot the drink is and the temperature of the room. Studio previews illustrate the transition so you can see where your artwork sits on the cup.

Unlike our standard 11oz and 15oz ceramic mugs, heat-reactive coatings are sensitive to abrasive scrubbing and high dishwasher heat. Always check the care instructions on the heat-reveal product page and hand-wash gently to keep the outer finish intact.

If you are giving a heat-reveal mug as a surprise gift, let the recipient know how the cup works and how to wash it—or pick our classic 11oz or 15oz ceramic mug if they prefer a design that is visible on the shelf all day.