Smell is chemistry in motion. When tea is hot, more volatile compounds evaporate into the air above the cup. That is the aromatic “cloud” you notice when you lean in.
Temperature changes how fast molecules leave a liquid. Heat gives them energy to escape, which increases the concentration of aroma in the air around you.
Why it feels stronger when it’s hot
There is also a timing effect. Hot tea delivers aroma in quick bursts as steam rises. Your brain interprets that as freshness and intensity.
Then memory steps in. Smell is strongly linked to emotion and recall, so a familiar tea can feel comforting even before the first sip.
A tiny experiment you can try
If you want a stronger aroma, cover the cup for a minute, then remove the lid and inhale gently. You are basically trapping those compounds and releasing them at once.
And yes—your mug matters. Wide openings disperse aroma faster; narrower cups can focus it.