High Quality Content by WIKIPEDIA articles! The poblano is a mild chili pepper originating in the State of Puebla, Mexico. Dried, it is called a chile ancho ("wide chile"). The ripened red poblano is significantly hotter and more flavorful than the less ripe, green poblano. While poblanos tend to have a mild flavor, occasionally and unpredictably, they can have significant heat. Different peppers from the same plant have been reported to vary substantially in heat intensity. A closely related variety is the mulato, which is darker in color, sweeter in flavor and softer in texture.