This pepper holds the record of being the hottest pepper in the world, according to the Guinness Book of World Records. This pepper has held the record since 2013. The Carolina Reaper looks menacing from the outside with its unique stinger. According to reports, this pepper was bred for hotness by crossing the Pakistani Naga and the Red Habanero pepper. Amazingly, the pepper is not only sizzling hot at 2.2 million SHU but also has great flavor for cooking.