The drink specific studies are generally pretty terrible, but the studies relating to the temperature of drinks and the risk of esophageal cancer are well accepted. And that's what the current medical school students are being taught.<p>(Meta-analysis of hot beverages and esophageal cancer (<a href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4457273/" rel="nofollow">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4457273/</a>).)