How are we able to drink scalding drinks, like tea?

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We Brits have mastered the art of sipping down a hot cup of tea.

Asked by: Dennis Taylor, Newquay

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When you tackle a really hot cup of tea, you will typically start with a noisy sip. This takes a very small amount of liquid into your mouth, mixed with a lot of air. The total thermal energy in the small volume is low and it is distributed over a wide area in your mouth. Each square centimetre doesn’t receive enough heat to burn the skin.


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Authors

luis villazon
Luis VillazonQ&A expert

Luis trained as a zoologist, but now works as a science and technology educator. In his spare time he builds 3D-printed robots, in the hope that he will be spared when the revolution inevitably comes.

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