According to the Guinness Book of World Records, the world’s hottest pepper is the Carolina Reaper, bred by Ed Currie. Officially, there is no other hot pepper than the Carolina Reaper. However, unconfirmed reports show that the Dragon’s Breath and Pepper X, also bred by Ed Currie, reached 2,483,584 SHU and 3.18 Million SHU. The Guinness World Records hasn’t officially recognized either of these peppers. Therefore, we’ll have to settle for the Reaper.