What is the difference between aroma and scent? Looking at the NOAD, I would say differences are few.
- Aroma: a distinctive, typically pleasant smell
- Scent: a distinctive smell, especially one that is pleasant
As Italian, I would use aroma since that is also an Italian word. Are there cases in which I should rather talk of scent?
In Italian, the other word I could use is profumo (probably translatable with "scent," in this case), which could be used for coffee too as in Che profumo di caffè! ("What a […] of coffee!"). Also, in Italian, when explaining the meaning of aroma ("aroma"), I would explain it in terms of profumo.