Despite brimming data showing that drinking coffee can be good for your health, there has been a lingering black stain on the popular drink s reputation—the 1991 assessment by the World Health Organization that classified coffee as a possible carcinogen.
In a Wednesday announcement and an accompanying article in the journal The Lancet Oncology, the WHO reversed that 1991 classification, striking coffee from the Group 2b list of foods and beverages that are possibly carcinogenic to humans.
That initial classification was based on limited evidence of an association with cancer of the urinary bladder from case-control studies, and inadequate evidence of carcinogenicity in experimental animals.
For more than 20 other types of cancers, the effect of coffee drinking was inconclusive, the experts found.
Similarly, the experts reviewed data on maté, a strong caffeinated drink particularly popular in South America.
In the US, standard coffee serving temperatures range from 70 to 85 degrees Celsius 158 to 185 degrees Fahrenheit .