Hot Coffee or Tea Triples Esophageal Cancer Risk, Study Finds 2026

Drinking coffee or tea at very hot temperatures may triple the risk of esophageal cancer, according to recent research from the University of Oxford highlighted by The Guardian. The finding adds to growing evidence that the temperature of what we drink matters as much as what we drink.

While an occasional hot sip is unlikely to cause harm, the study underscores that repeated exposure to very hot liquids over time is the real concern. Understanding the mechanism and the safe temperature threshold can help you make simple, protective changes.

What the Research Says About Hot Beverages and Esophageal Cancer

The Oxford research suggests that people who regularly consume coffee or tea at high temperatures have a significantly elevated risk of esophageal cancer—roughly three times higher than those who drink cooler beverages. However, the study does not imply that a single hot drink will cause cancer; rather, it points to the cumulative effect of prolonged exposure.

This aligns with earlier evaluations. In 2016, the International Agency for Research on Cancer (IARC), part of the World Health Organization, classified beverages consumed above 65°C (149°F) as "probably carcinogenic to humans," specifically due to their link to esophageal cancer.

Why Temperature Matters: The Thermal Damage Mechanism

The IARC clarified that the classification relates exclusively to thermal damage—repeated microscopic burns to the esophageal tissue. Over time, these injuries can lead to cellular changes that may progress to cancer.

Unlike chemical carcinogens, the risk here is physical: the heat itself injures the delicate lining of the esophagus. This is why the frequency and duration of exposure are critical, not just the absolute temperature.

How Hot Is Too Hot?

The 65°C threshold is the key benchmark. For context, typical coffee served at a café may be around 70–80°C, while tea brewed at home can be similar. Letting your drink cool for a few minutes before sipping can bring it into a safer range.

Key Takeaways for Safer Drinking

• Wait a few minutes after brewing before drinking coffee or tea.
• Avoid scalding temperatures—aim for below 65°C (149°F).
• Be mindful of habitual consumption: daily very hot drinks pose the greatest risk.
• Check the temperature if you use a thermos or insulated cup that keeps drinks hot for hours.
• Pay attention to sensations: if it burns your mouth, it's too hot for your esophagus.

Comparing Beverage Temperatures and Risk Levels

This table illustrates why letting your drink cool is a simple preventive measure. The difference between a fresh brew and a few minutes of waiting can be significant. The longer history behind the story is traced in Creatine Boosts Immune Cells in Cancer Immunotherapy, Study Finds.

Who Is Most Affected?

People who routinely drink very hot beverages—such as those who consume multiple cups of coffee or tea throughout the day without allowing them to cool—are at greater risk. The study's findings are particularly relevant for individuals with a long history of such habits. Context on how this played out before sits in Hot Coffee or Tea Triples Esophageal Cancer Risk, Study Finds. A companion piece, Closing the Toilet Lid Doesn't Stop All Aerosols, Science Says, approaches the same subject from another angle.

It's also important to note that esophageal cancer has other risk factors, including smoking and alcohol consumption. The temperature of beverages is one modifiable factor among several. The background to this story is set out in Health: latest articles. A related thread runs through Weight Cycling and Muscle Loss: The Hidden Risk of Yo-Yo Dieting.

What to Watch Next

As research continues, expect more precise guidelines on safe beverage temperatures and potential public health recommendations. Meanwhile, the takeaway is clear: enjoy your coffee or tea, but let it cool first. Earlier coverage in Walking vs Stair Climbing After 60: Which Exercise Is Better shows how the argument developed. A closer look at the same subject appears in Trump's Final Years: A World Divided Into Three Dangerous Blocs.

Small adjustments to your daily routine can make a meaningful difference in long-term health. Stay informed about how everyday choices influence cancer risk. Anyone following the wider picture can start with Cueva del Viento: Tenerife's 27,000-Year-Old Lava Tube With 190 Species. The same theme surfaces in Chinese Humanoid Robots at IFA: What I Saw Behind the Hype, which takes a different angle.