From Stinky Cheese To Cat Pee, Author Takes A 'Nose Dive' Into The Science Of Smell

Butyric acid gives some cheeses their distinctively strong scent.

Harold McGee talks about how our sense of smell affects taste, why things smell the way they do and the ways different chemicals combine to create surprising (and sometimes distasteful) odors.

(Image credit: Alexander Spatari/Getty Images)



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