What is the main purpose of using dried red chilies in some dishes?

The main purpose of using dried red chilies in some dishes is to provide spice and heat. Dried red chilies contain capsaicin, the compound responsible for their spiciness. When incorporated into a dish, they enhance the flavor profile by adding warmth and a level of heat that can elevate the overall taste experience. This heat can balance other flavors and make dishes more complex and enjoyable. Additionally, the intensity can vary among different types of dried red chilies, allowing for versatility in how much heat is introduced to a dish.

Other purposes, such as adding color or thickening sauces, are secondary to the primary function of providing spice and heat. While dried red chilies can certainly add vibrant color to a dish, that is not their main function, and their ability to enhance sweetness is not a characteristic associated with them. Instead, they contribute a piquant quality that can enhance the flavors of both savory and sweet ingredients in various culinary traditions.