A ghost pepper's heat is described in terms normally reserved for carpet bombings. Its heat is measured at 1 million units on the Scoville scale, a per-mass measure of capsaicin — the chemical compound that imbues peppers with heat — that until recently was a world record. Peppers that pass the 1 million mark are called superhot; as a rule they are reddish and puckered, as though one of Satan's internal organs had prolapsed. To daredevil eaters of a certain stripe, the superhot peppers exist only to challenge.
When consumed, ghost peppers and other superhots provoke extreme reactions. "Your body thinks it's going to die," as Louisiana pepper grower Ronald Primeaux told the AP in October. "You're not going to die."
But, demonstrated by a rare though severe incident reported recently in the Journal of Emergency Medicine, superhot peppers can cause bodily harm. A 47-year-old man, unnamed in the case study, attempted a super-spicy feat — eating a hamburger served with a ghost pepper puree — and tore a hole in his esophagus.