If coffee is a carcinogen someone forgot to tell us, there are millions drinking it and the only one I've ever heard of getting cancer from coffee is the rat that was used for the tests, but I think anyone would get something if you shove 10 pounds of coffee up their butts.. Point is there is no proof of any kind cause it's hard to get 10 cellphones up that rats a$$. So I guess if there would be a organized test lasting 20 some years then there might be something to the claim but I don't think anyone wants to spend the money or be tied to a program that long....