Is there such a big difference between hot coffee and iced coffee? Hot coffee may cause esophageal cancer!

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The World Health Organization (WHO) pointed out that drinking overheated drinks can cause cancer, with particular reference to hot coffee and hot tea. The study has been published in the journal The Lancet Oncology.

Research

The team came from Mariana Stern, Associate Professor of Preventive Urology, Keck School of Medicine, University of Southern California (USC), and scientists from 10 other countries.

Hot drinks are at risk of causing cancer

By summarizing more than a thousand cancer clinical studies, the team concluded that drinking any drink higher than 149C (about 65C) could cause cancer in humans, with a cancer risk similar to that of DDT, fried foods at high temperatures, red meat and human papillomavirus.

Why on earth is that? The researchers initially speculated that the high temperature associated with hot drinks could scald the tissue at the bottom of the throat (located in the chest) for a long time, leading to cancer.

Mariana Stern, associate professor of preventive medicine and urology at the Keck School of Medicine at the University of Southern California, further found that the carcinogenic temperature of hot coffee and hot tea (Madai tea) is only about 65 degrees Celsius. As the team found that some countries like higher temperatures when drinking tea, such as Argentina, Uruguay and Paraguay in South America, they like to drink Madai tea with temperatures between 150 and 212 degrees Fahrenheit (66 to 100 degrees Celsius).

Mate Tea, also known as Yerba Mate, is an evergreen herb unique to South America, belonging to the holly family. It grows mainly in subtropical areas near the Atlantic Ocean and the Paraguayan River, including Paraguay, Uruguay, northern Argentina and southern Brazil, containing caffeine.

Caffeine bacteriostasis

I believe everyone will be familiar with caffeine, the so-called caffeine is actually a xanthine alkaloid compound, extracted and purified by natural plants, can be used as a refreshing central nervous stimulant, the general dose has no toxic side effects on the human body, but excessive intake will lead to symptoms such as nervousness, anxiety, hand and foot tremors and limb muscle convulsions.

In fact, moderate consumption of tea and coffee is also good for human health. Scientists have long confirmed that tea contains polyphenols, which can reduce blood fat, blood pressure, and inhibit bacteria. Long-term drinking is good for the digestive system and blood function, as well as preventing aging. A cup of coffee a day can help reduce the risk of liver and endometrial cancer.

Associate Professor Mariana Stern said that in the United States, the average drinking temperature of coffee is 140 degrees Fahrenheit (60 degrees Celsius). If drinking hot tea or coffee increases the risk of cancer, will people cool the brewed tea or coffee to below 60 degrees Celsius? three