Blues, while I agree that under normal atmospheric pressure at sea level water and other water-based liquids (like coffee, tea, salty water...) boil right around 212° (and would likely continue to do so even if I withheld my consent), still I did see the news report to which Genie refers (or another like report) and she is not misrepresenting what the report reported. The microwaved water did indeed exhibit explosive tendencies that were explained in terms of superheating. Where the inexactitude or imprecision lies I hazard not to divine.

Liland