Consuming beverages at extremely high temperatures can harm the delicate lining of the esophagus and elevate the likelihood of developing cancer in that organ, according to recent scientific findings. A large-scale investigation conducted by researchers at Oxford University indicates that individuals who regularly consume very hot coffee or tea face a substantially higher danger of this specific malignancy compared to those who prefer lukewarm beverages.
The academic study, which followed nearly one million middle-aged participants, stands as the most extensive research project to date examining the connection between beverage temperature and esophageal health. The findings were detailed in the International Journal of Cancer with support from Cancer Research UK. According to the data, drinks served at 65 degrees Celsius or higher can inflict repeated cellular trauma upon the food pipe as the liquid travels toward the stomach.
While the relative increase in danger is notable for those who favor scalding liquids, health specialists emphasize that the overall probability of contracting this form of cancer remains quite low within the general population. Approximately one percent of the UK population faces a lifetime risk of developing squamous cell esophageal cancer. Researchers estimate that avoiding excessively hot drinks entirely could potentially prevent roughly ten to twenty percent of these cancer diagnoses.
Water reaches 100 degrees Celsius when boiling, and standard hot water poured directly from a kettle generally starts between 90 and 95 degrees Celsius. Even adding milk to a freshly prepared brew often fails to lower the temperature enough to prevent potential cellular harm. Experts recommend allowing hot beverages to sit for several minutes until they reach a comfortable drinking temperature before consumption.
Public health organizations note that consumer preferences often lean toward higher temperatures, with many individuals routinely consuming drinks that exceed safety thresholds. A supplementary trial involving young adults demonstrated that most people only consider black coffee uncomfortably hot when it reaches 70 degrees Celsius or higher. Conversely, industry guidelines suggest that standard takeaway coffee is best served between 49 and 60 degrees Celsius, though specialty orders can push past 82 degrees Celsius.
Despite the findings regarding hot liquids, major health charities stress that lifestyle factors such as tobacco use and excessive alcohol consumption remain far greater threats regarding esophageal cancer. Symptoms associated with the disease can include persistent heartburn, indigestion, unexplained weight loss, and discomfort in the chest or throat region. Medical professionals advise individuals to remain mindful of these warning signs and to consult a doctor if symptoms persist.
Reporting based on coverage first published by BBC News. Read the original report at BBC News.
