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Background, I vape a mint (spearmint and peppermint) with menthol. When I drink any kind of coffee and for some time after, the vape has a different (not so nice) taste. It can be black coffee, something fancy from a coffee shop, or anything else.

This got me wondering, what is the chemical process that is going on here. Is there something about coffee that binds to some taste receptors? If so which ones.

I am casually interested in the science of what is happening in my mouth when I drink coffee as evidenced by changes in flavours of something else.

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    Does this happen only when you drink coffee? What about other foods like yoghurt or just after brushing your teeth (with toothpaste)? If those also affect the taste of vaping, maybe it's more of a biology question? See also the taste tag on Biology.
    – JJJ ♦
    Commented Sep 3, 2021 at 15:59
  • I've only noticed it with coffee.
    – Matthew Brown aka Lord Matt
    Commented Sep 3, 2021 at 21:03
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    This paper might be useful. The TLDR from the paper is that the methol compound itself is considered to be bitter tasting.
    – Ram Pari
    Commented Sep 27, 2021 at 0:38

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3 years late but one of the times when I tried to quit smoking I used mint nicotine gum and when I took a sip of my daily coffee i instantly noticed it tasted “different” but in a really good way for me. As time has went on I’ve noticed it’s pretty much any “mint” flavoured things will give coffee a “different” taste. I sometimes will even skip my coffee now if I don’t have a mint vape or some mint gum on hand because I find it just enhances the taste of the coffee so much.

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