Why does coffee smell good, but it doesn't taste so good?

Why do we feel that it doesn't smell good when we drink coffee?

Barry, a professor at University of London. The conclusion of Smith's study is that we have two senses about smell, one of which is caused by inhalation in the external environment. The other is when the smell is exhaled out through your nasal cavity.

The act of swallowing coffee sends an aroma from the inside of the mouth to the nasal cavity, stimulating the brain to produce a "secondary sense of smell." This time the feeling is not as strong as it was when I first smelled it, giving people a completely different, less satisfying feeling. Although we have taste buds on our tongues, 80% of the taste we taste is actually sensed through the olfactory receptors in the nasal cavity, while these receptors that send messages to the brain feel differently about the smell that moves in different directions.

Another reason why it doesn't smell good is that 300 of the 631 chemicals that make up the taste of coffee are killed by saliva, causing it to change before we swallow it.