Why is hot spicy food more spicy than cold one?

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Why is hot spicy food more spicy than cold one?

In: Chemistry

Probably because hot foods bring more blood to the surface of your tongue. The combination of hot temp and capsaicin compounds the feeling.

Capsaicin is an oil, so heating it up makes it more fluid (runny) and let’s it coat your mouth better. When cold, it doesn’t mix with the water in your mouth as well. If you take a bit of cold butter, fresh out of the fridge, and put it in your mouth, it will have a different flavor than the same bit that has been warmed up (don’t warm it up too much – you’ll fry your tongue).