Q.1: What is color changing mug? 

A.1: Color changing mug is the mug which changes color. It is temperature sensor. When you pour hot coffee / tea or icy cold beverage, the design on the surface of mug will be changed to another. Bring the amazing surprise to people, so we also call it magic mug.

Q.2: What temperature that mug will be changed?

A.2: Usually, for the hot color changing mugs, when the temperature above 45 degree, the design will be changed; For the cold color changing mugs, when the temperature below 17 degree or 13 degree, the design will be changed.

Q.3: How to design the hot or cold color changing artwork ?

A.4: Hot changing design should be changed from dark color to light by pouring hot water. So before changing , the magic layer should be black/ dark green/ dark blue/ dark brown etc. red or purple color are also ok, but can't cover the hot design completely (No limitation to the hot design). Cold changing design should be changed from light color to dark by pouring cold water. 

Q.4: Whether the Color changing mug is poisonous?

A.8: When the blank mug, color changing materials, and auxiliary materials, manufacturers has been fully considered? Whether these materials are passed the inspection of SGS, and ITS, or other Testing on the detection? answer is Yes, no harm to us, non-toxic processed into color changing mug. Also tested according to food containers acetate soak test, non-toxic, lead-free, chrome-free, achieved European standards and FDA standard, though everyone be at ease use. Cost savings, choose industrial-class materials, this kind of undesirable product will not in consideration.