What are the differences between ancho and poblano peppers in terms of flavor, heat level, and culinary uses?

Ancho peppers are dried poblano peppers, so they have a deeper, sweeter flavor with mild heat. Poblano peppers are fresh and have a milder flavor with medium heat. Ancho peppers are commonly used in sauces and rubs, while poblano peppers are often stuffed or roasted for dishes like chiles rellenos.