Question

How does heat change the way something smells?

Answer 1

This is a very tough question to explain. Perhaps this website can help: http://www.nap.edu/read/2094/chapter/12#180

Answer 2

Also if I were to describe heat as a smell in my own words, I would say that heat can make something smell burnt but it would be extremely hard to predict resulting in the research of thermodynamics and the hedonics of thermal modulation of odors.