In recent years, “superhots”— chilis that score above 500,000 on the Scoville scale — have consumed the attention of chiliheads, who debate grow lights on Facebook, swap seeds in flat-rate boxes and show up in droves at fiery-foods events. Chilis, in general, are beautiful. Superhots come in the brightest colors and the craziest shapes.

Chiliheads crave the heat that hurts so good.

In the first season of Hot Ones, host Sean Evans proved that there's no wing he can't handle. But the world of spicy foods doesn't end at Mad Dog 357 hot sauce. To train for Season 2 and ensure his invisibility on the Hot Ones stage, Sean met up with a true legend of the chili world — Denmark's ghost-pepper-popping Chili Klaus — to take on the hottest chili pepper known to man, the Carolina Reaper.

Carolina Reaper has been rated as the world's hottest chili pepper by Guinness World Records since August 7, 2013. The original crossbreed was between a ghost pepper (a former world record holder) and a red habanero. The official Guinness World Record heat level is 1,569,300 Scoville Heat Units (SHU), according to tests conducted by Winthrop University in South Carolina.