The chart used to determine the pepper's heat, named the Scoville Scale after its creator, American pharmacist Wilbur Scoville, assigns measurable units of spiciness to various foods. For example ...
Ranked as the Guinness World Record’s hottest pepper, the Carolina Reaper peaked at about 2.2 million Scoville Heat Units, the scale used to rank how spicy peppers are.
Based on the Scoville heat scale, which measures the hotness in pepper varieties, jalapeños fall between 2,000 and 8,000 units. For comparison, serrano peppers can reach 25,000 units and cayenne ...