How many kinds of chillies are there?

There are thousands of varieties of chillies worldwide, with estimates suggesting over 400 different types commonly used in cooking. These range from mild peppers like bell peppers to extremely hot varieties like Carolina Reaper and Ghost peppers. Chillies can be classified by their heat level, flavor, and usage, including fresh, dried, or powdered forms. The diversity in chillies reflects regional preferences and culinary traditions around the globe.