Your nose has the astonishing ability to smell thousands of different scents because in your nose are millions of smell receptors cells that can recognize odor molecules. The air is filled with many small odor molecules which are released from smelly things like perfume or food. Iflscience On Twitter Scents Science Chemistry Organic Chemistry Chewing food releases aromas that access the olfactory sensory neurons through the second channel. . Luke Goddard rlukegoddard March 19 2010 I never noticed the racial undertones in that sentiment until I got embarrassed myself but thankfully Ive avoided problems while living in LA save for some stares and questions. If you are cooking meat it definitely invite. When you sniff the air these special cells are alerted. You dont even need to be consciously trying to smell something for it. Its soooo good though. If you dont want to smell food odors then dont provide your staff a microwav...