What is an attribute for pepper?

Spiciness. Peppers range in spiciness from mild to extremely hot. The spiciness of a pepper is determined by the concentration of capsaicin, a compound that binds to receptors in the mouth and throat, triggering a burning sensation. The Scoville scale is used to measure the spiciness of peppers, and it ranges from 0 (no spiciness) to 2,200,000 (the spiciest pepper in the world, the Carolina Reaper).