Capsicum Chinense

Though never officially crowned, the Dorset Naga was thought to be the world's hottest chilli in the mid 2000s, and one of the first chillies whose pods measured in above 1 million SHU.

With a name meaning snake or serpent chili, it should come as no surprise that this is a super hot. Related to the former world record holder, the Bhut Jolokia, it measures in at over 1 million SHU.