People who drink their tea steaming hot may have 8 times a greater risk of developing throat cancer than people who drink their tea at a lukewarm temperature. According to a study by the British Journal of Medicine conducted in Iran, where hot tea is the beverage most people drink and where there is a high incidence of oesophagal cancer, a link has been found between hot-tea-drinking and throat cancer.
Frequently consuming very hot liquids or foods can damage the lining of the mouth and throat and over time, cellular damage can lead to abnormal cell formation. So wait and let hot food and drinks cool to a tolerable temperature.
Microwaved foods continue to "cook" after being removed from the oven. Be sure to follow the "wait time" instructions on microwave food packages before you dig in.