An ice cream parlor in Glasgow, Scotland, is now serving a flavor that you have to be over 18 to try. The flavor, called Devil’s Breath, is the world’s spiciest ice cream! It’s made with the world’s hottest chili pepper, the Carolina Reaper.

Chilies are spicy because they contain a chemical called capsaicin (kap-SAY-uh-suhn). Capsaicin activates cells in your mouth that tell your brain you’re eating something scorching hot. 

Eating a scoop of the spicy ice cream can be painful, says Lee Bandoni. He helps run the Aldwych Café and Ice Cream Parlor, which makes the flavor. The burning feeling can last a few hours. “The sensation is so extreme,” Bandoni says. “It’s like a fireball.”