Do you drink tea too hot? You shouldn’t do that. This entails the necessary health risks for some people. A consequence that is very obvious for people who drink their tea too hot is an irritated or burned esophagus. But in addition, tea that is much too hot can also increase the risk of esophageal cancer. That’s why I designer Thermok. A cup that changes color within the pattern to indicate the temperature. The color tells you when your beverage can be consumed safely.