COLD - Will only react to COLD liquids. Sakura and Peach will bloom PINK, and the Plum specifically blooms RED only in this set. Currently our most detailed in color change as seen in videos. 

HOT - Will only react to HOT liquids. All Sakura, Peach, and Plum will change into a LIGHT PINK blossom. 

DUAL (HOT & COLD) - Will react to BOTH HOT & COLD liquids. All Sakura, Peach, and Plum will bloom LIGHT PINK when HOT, and a detailed BLUE when it is COLD. 

Color Changing Feature: The color changes when the temperature of the hot color changing cup is above 103°F, and the color changes when the temperature of the cold color changing cup is below 70.5℉. The pigment is: temperature-sensitive materials are painted on the cup body and coated with a clear glaze, the materials used are heat-sensitive materials, high-temperature resistance of 608 °F, non-toxic, BPA-free, lead-free, chromium-free.

Due to the delicate thermal reaction, there are cases where certain parts of the world are too hot or too cold that the cups arrive fully bloomed and activated out of the box. In this case, we recommend to serve them at a different season or apply a heating or cooling method to reset the cups back to original blank white with branches. Gentle hand wash is recommended to preserve the longevity of the cups and ink design, a dishwasher is not recommended.