- By Rob Cook
- Published 18/08/2008
- Self Help
-
Rating:
Unrated

The “heat” or “hotness” of chili peppers and consequently pepper sprays is measured in Scoville Heat Units (SHU) or the Scoville scale, named after the American chemist Wilbur Scoville The presence of the chemical capsaicin is responsible for this pleasant or unpleasant degree of heat, depending on if you are talking to a hot wings connoisseur or an assailant with pepper spray dripping from his face