Hot drinks linked to higher risk

UK research finds very hot tea and coffee, when consumed in large amounts, may raise the risk of oesophageal cancer.

Hot drinks tied to higher oesophageal cancer risk

A large UK study of almost half a million adults found that drinking eight or more cups a day of very hot tea or coffee is associated with a sixfold increase in oesophageal cancer risk, compared with people who do not drink hot beverages. The finding follows the 2016 decision by the International Agency for Research on Cancer to classify very hot beverages as probably carcinogenic to humans, a conclusion supported by studies in regions where hot drinks are common. Heat may damage the lining of the oesophagus and, over time, raise the chance of cancer developing, especially with high volume and rapid consumption. The study also notes that the risk is influenced by how hot the drink is and how quickly it is consumed, not just the type of beverage.

Researchers say temperature matters, and small sips over time seem less harmful than large, fast gulps. Some experiments suggest that sipping coffee at very high temperatures could increase injury, while others show that lowering the temperature reduces risk while keeping flavor. A target around 57.8C has been proposed as a balance between enjoyment and safety. Practical steps to reduce heat exposure include letting drinks cool for about eight minutes after pouring, stirring, blowing on the surface, opening the lid of takeaway cups, and adding milk or water. By adopting slower, mindful sipping, people can preserve the habit of hot drinks while cutting potential harm.

The story highlights how health risks are communicated in the media. The headline can spark concern, but readers should understand that the cited risk comes from observational data and may reflect association rather than proven causation. Culture and daily rituals around tea and coffee complicate how people respond to temperature guidance. Clear messaging about safe temperatures, rather than warnings about hot beverages overall, helps avoid unnecessary panic and supports informed choices. The piece also shows the need for more human data and consistent temperature thresholds before broad public recommendations can be made.

Highlights

Safer sipping can coexist with daily rituals.