Oxford Study Links Very Hot Beverage Consumption to Increased Cancer Risk

This study highlights a significant health risk associated with a common lifestyle choice, potentially impacting public health recommendations.

• A major study from Oxford University found a threefold increase in esophageal squamous cell carcinoma risk for those consuming beverages at 65°C or higher.
• Data from nearly one million UK adults over 14 years revealed that drinking six or more hot beverages daily further elevates this risk by 71%.
• Temperature, not beverage type, was identified as the primary risk factor, reinforcing previous international findings on hot beverage consumption.

• Previous classifications by the International Agency for Research on Cancer (IARC) already indicated that very hot beverages are probably carcinogenic, based on evidence from various global regions.
• The Oxford study analyzed self-reported preferences and consumption patterns, linking them to actual cancer cases, thus providing stronger causal evidence.
• Public health guidance has historically advised allowing beverages to cool, but this new data may necessitate a reevaluation of those recommendations.

The Oxford University study, published on September 11, 2026, provides a critical look at the relationship between beverage temperature and esophageal cancer risk. Researchers analyzed data from approximately 980,000 middle-aged adults in the UK, tracking their beverage consumption and subsequent health outcomes over 14 years. The findings revealed that individuals who preferred very hot drinks (65°C or higher) had more than three times the risk of developing esophageal squamous cell carcinoma compared to those who preferred warm beverages.

This study builds on earlier research that identified thermal injury to the esophageal lining as a significant risk factor for this type of cancer. The mechanism appears to be linked to repeated exposure to high temperatures, which can damage the cells lining the esophagus, leading to carcinogenic changes over time. Notably, the study found no significant association between hot beverage consumption and adenocarcinoma, another type of esophageal cancer, suggesting that the risk is specific to squamous cell carcinoma.

Lead researcher Keren Papier emphasized the importance of the study's large sample size, which strengthens the evidence for a causal relationship between hot beverage consumption and cancer risk. The recommendation is clear: allow drinks to cool to a comfortable temperature before consumption. This advice is particularly relevant in cultures where hot beverages are a staple, as it may help mitigate the risk of esophageal cancer, especially in conjunction with other known risk factors like smoking and alcohol consumption.

As health authorities continue to prioritize smoking cessation and alcohol moderation as primary risk factors for esophageal cancer, this study adds a new layer to public health messaging. It underscores the need for individuals to be mindful of their beverage choices and consumption habits, particularly in regions where hot drinks are culturally significant.

• Health professionals: They may need to adjust public health messaging and patient education regarding beverage consumption.
• Consumers: Individuals who regularly consume hot beverages may need to reconsider their habits to reduce cancer risk.
• Cafés and restaurants: Businesses serving hot drinks might see a shift in customer preferences towards cooler options.
• Public health authorities: They may need to incorporate these findings into broader cancer prevention strategies.

• Public health campaigns: Watch for potential updates in health guidelines regarding beverage consumption and cancer risk.
• Consumer behavior: Monitor changes in how people order and consume hot beverages in cafes and restaurants.
• Research developments: Look for further studies exploring the long-term effects of beverage temperature on health outcomes.