Their heat index is between 15,000 and 30,000 Scoville units and in cooking substitutions, the Chile de árbol pepper can be traded with Cayenne pepper.
Their heat index uses to be between 15,000 and 30,000 Scoville units, but it can reach over 100,000 units. In cooking substitutions, the Chile de árbol pepper can be traded with Cayenne pepper.