Question

why coffee tastes less sweet if it is taken after eating sweet​

Answer 1

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This is the reason why we don't find our tea or coffee sweet once we have it after eating something relatively sweeter. ... When you eat a lot of sweets, your taste buds get used to that amount of sweetness. This is called sensory fatigue and happens with not just your taste buds but all of your senses.

Answer 2

Answer:

Coffee is very bitter. If you eat it something sweet, your tongue is acclimated to sweetness. Drinking coffee while being acclimated to sweetness will make the bitterness stand out more to you. ... Then the coffee comes, and it's less sweet than the thing you ate, so your brain barely perceives any sweetness at all.