>>61778029Coco JP curry chain has a lot of customization in their dishes, including letting you pick a spice level from 1 through 10. Biboo apparently mentioned during her MonHun collab that she eats at max level.
Spiciness is of course subjective, but I'd say most people with decent spice tolerance would consider 5-6 or so to be pretty strong already, and 10 quite impressive.