The hottest pepper in the world is the Trinidad Scorpion Butch T.
It has a rating of 1,463,700 Scoville heat units.
"The Trinidad Scorpion Butch T pepper is so strong that those who handle it have to wear protective gloves. Exposure to the eye or near the eye when handling this pepper could cause temporary blindness. While preparing the Butch T one should wear a chemical mask and or a body suit to defend against fumes given off in the cooking process."
The Bhut Jaloka has 1,041,427 Scoville heat units. It is also commonly called the Ghost pepper.
Also Funfact:
The chemical that makes peppers hot has a rating of 15-16 million scoville heat units.
I meant peppers you can eat and not die. :3
Also, I was mistaken, I thought Bhut Jolokia and Ghost Pepper were the same but different growth way so one would be spicier, I wasn't aware they were both the same. :o