What is the difference between crushed red pepper and cayenne, and how do their flavors and heat levels compare?

Crushed red pepper is made from a variety of dried red chili peppers, while cayenne is made from a specific type of chili pepper called the cayenne pepper. Cayenne tends to be hotter and have a more intense flavor compared to crushed red pepper. Crushed red pepper is milder and has a slightly sweeter taste.