Study Links Scalding Hot Tea to br Increased Cancer Risk The report was published this weekbr by the American Cancer Society. The type of cancer the tea could cause is esophageal, br which kills over 400,000 people annually. Smoking and alcohol are the main causes, but now br too much hot liquid could also be a factor. According to the study, br tea becomes more dangerous at br 140 degrees fahrenheit or higher. Drinking 700 milliliters a day or more br will also increase the risk. From 2004 to 2017, researchers br observed over 50,000 people. The study was conducted in Iran, where people br drink tea much hotter than in other br parts of the world. All of the subjects ranged br from 40 to 75 years old. Over the time period, 317 new cancer cases br were eventually discovered.