This chestnut is produced mainly from the Barea and Clarinha varietals, which are cultivated in the Portalegre district in the Alentejo region of Portugal. They are harvested after they fall from the tree, and they are then sorted, graded, and dried using special equipment.
Sturdy and hard, their color ranges from light brown to dark red with a shiny, waxy exterior. The distinctive flavor of Marvão-Portalegre chestnuts is so popular that they are used in a variety of regional dishes, such as chestnut soup, pork roast with chestnuts, or turkey with chestnuts.