
Horseradish and wasabi are both made from the roots of plants in the cabbage family: Armoracia rusticana and Wasabia japonica, respectively.
When the cells in these roots are ruptured—if they’re chopped or chewed, for example—they release a compound called allyl isothiocyanate. As well as having a very pungent taste, this chemical is what irritates your nose and eyes, says T. Page Owen, PhD, chair of the Connecticut College Botany Department.
As we eat wasabi or horseradish, allyl isothiocyanate vapors travel through the back of the mouth and up into the nasal cavity. This triggers a nerve response in the nose and sinuses, explains Dr. Dawn Chapman, project leader for sensory research at the National Food Laboratory, causing the familiar nose-tingling burn.
CHOW’s Nagging Question column appears every Friday.
Wasssssaaabbiiii! Can't have sushi without it. Is it true that it stimulates endorphins?
Wasabi rocks. I just had some sashimi at a restaurant, and the wasabi was served on a smooth rock. Wasabi rocks.
Can't hate it!
So do I.
MsDiPesto, I think your brother in law's description is exactly right.
My brother in law likes to say "I like wasabi better than hot sauce because it blows the top of my head off...and then it's gone!"