A magic cup is a cup that changes color when filled with hot liquid. The effect is achieved through the use of special oxidized ink. Well, here's the thing: The paint they put on the heat-changing cups is called thermal paint -- a paint that's sensitive to temperature changes.
Also, how long can a hot exchange cup last? A: Thermal components should always exist. However, as the drink cools, the heat-activated parts of the image fade. We found that a hot drink allowed the image to be completely painted for at least 30 minutes.
Magic cups or color changing cups are completely safe. You need not worry about...... It will not affect your health. As you know, the Magic cup is coated with thermal paint that changes the color of the cup to another color.
