Certain taste buds perform better between fifteen to thirty*five degrees Celcius (fifty-nine to ninety-five degrees Fahrenheit). Salt is the only one that isn’t affected by temperature, if I recall correctly.
So, therefore, the warmer a drink is, the more intense the sweet, sour and bitter tastes are.
The intensity of each taste changes at a different rate – bitter, for example, drops off a lot faster than sweet does.
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