According to World Health Organization cancer agency all "very hot" drinks are probably can cause cancer.
The International Agency for Research on Cancer (IARC) had beforehand appraised coffee may cause cancer yet has changed its opinion.
It now says "no "no conclusive evidence for a carcinogenic effect" of coffee drinking.
"(This) does not show that coffee is certainly safe ... but there is less reason for concern today than there was before," Dana Loomis, the deputy head of IARC's Monograph classification department told a news conference.
“These results suggest that drinking very hot beverages is one probable cause of oesophageal cancer and that it is the temperature, rather than the drinks themselves, that appears to be responsible,” said Dr. Christopher Wild, Director of the International Agency for Research on Cancer.
They also had some useful advice for people who drink hot beverages.
“Certainly wait a few minutes more before drinking your drink,” the IARC said.
Studies in locationsuch as China, Iran, Turkey and South America, where teais traditionally consumed extremely hot (at about 70 °C), discovered that the risk of oesophageal cancer rose with the temperature at which the beverage was consumed.
Scientist explained in an interview that while they couldn't figure out the mechanisms behind why hot drinks may cause cancer, there is some proof that they may destroy the cells in the esophagus or cause them to go out of control. They said the WHO’s new thinking on hot beverages should be taken more seriously and people should be more aware about the temperatures of various beverages they drink.
In its latest study, the agency noted that some studies revealed coffee drinkers had a lower risk for cancers of the liver and womb. For more than 20 other cancers, the evidence was inconclusive.
