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My physics teacher recently asked me this question. Can anyone answer the question?

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  • $\begingroup$ How do you measure "taste"? $\endgroup$ – NickD Feb 15 '19 at 14:35
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    $\begingroup$ I'm voting to close this question as off-topic because it isn’t about physics. $\endgroup$ – Jon Custer Feb 15 '19 at 14:35
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    $\begingroup$ Assumes facts not in evidence. There are soups you eat cold. $\endgroup$ – StephenG Feb 15 '19 at 14:36
  • $\begingroup$ @JonCuster Agreed. Probably a better fit for biology.se? $\endgroup$ – Apoorv Khurasia Feb 15 '19 at 14:39
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    $\begingroup$ @ApoorvKhurasia - More likely Seasoned Advice (yes, SE has a cooking channel). $\endgroup$ – Jon Custer Feb 15 '19 at 14:51
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Interesting question. Hot soup should cover more surface area of the person's tongue than cold soup due to decreased surface tension. This in term means that more taste receptors would get the sensation when the soup is hot than when it is cold. I guess that covering more taste receptors somehow makes the brain interpret the soup as tastier.

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