temperatures of 70C or higher increased the risk.
Experts said the finding could explain the increased oesophageal
cancer risk in some non-Western populations.
Adding milk, as most tea drinkers in Western countries do, cools the
drink enough to eliminate the risk.
The oesophagus is the muscular tube that carries food from the throat
to the stomach."
Full BBC News article: <http://news.bbc.co.uk/2/hi/7965380.stm>
This 2009 report may explain the higher incidence in esophageal cancer
in mate drinkers. Mate is usually drunk at very high temperatures.