hot beverage

^[1]

Adverse effects

very hot beverages* (> 65 degrees C, 149 degrees F) probably causes esophageal cancer^[1]

* most studies conducted in places where tea or mate tends to be drunk particularly hot (China, South America)

* 65 degrees C is hot enough to burn tongue

↑ ^1.0 ^1.1 Orciari Herman A, Sadoughi S, Saitz R WHO Agency: Very Hot Beverages Probably Are Carcinogenic Physician's First Watch, June 16, 2016 David G. Fairchild, MD, MPH, Editor-in-Chief Massachusetts Medical Society http://www.jwatch.org
International Agency for Research on Cancer (IARC) PRESS RELEASE No, 244. June 15, 2016 IARC Monographs evaluate drinking coffee, mate, and very hot beverages http://www.iarc.fr/en/media-centre/pr/2016/pdfs/pr244_E.pdf
Loomis D, Guyton KZ, Grosse Y et al Carcinogenicity of drinking coffee, mate, and very hot beverages. Lancet Oncology. June 2016 <PubMed> PMID: https://www.ncbi.nlm.nih.gov/pubmed/27318851 <Internet> http://www.thelancet.com/journals/lanonc/article/PIIS1470-2045(16)30239-X/fulltext