Why does soup smell stronger when it is hot?
Soup's Flying Army
Why does soup smell stronger when it is hot?
You lift the lid off a pot of chicken soup. Steam rises, and the smell hits you like a wave — warm, rich, unmistakable. But if you stick your nose over that same pot when it's been in the fridge overnight, barely anything. Same soup, wildly different smell. What gives?
Smell is chemistry meeting your nose. When molecules from the soup — bits of onion, garlic, chicken fat, herbs — float through the air and land on smell receptors inside your nostrils, your brain says "soup!" But here's the thing: those molecules have to GET to your nose first. And cold molecules are lazy.
