Afuega'l pitu is an unpasteurised cow's milk cheese from Asturias, one of four Asturian cheeses (the others being Cabrales, Gamonedo cheese, and Casín cheese) to have been recognized with Protected Designation of Origin (Denominación de Origen, DO) by Spain and the European Union.
The name comes from its tendency to stick to a person's palate ("pitu"). It is considered to be one of the oldest Spanish cheeses. Production is centred around the municipalities of Grado, Las Regueras, Morcín, Pravia, Riosa, Salas, and Yernes y Tameza with the municipality of Grado having the largest production and being the headquarters of the council of Denomination of Origin.
The cheese is produced all year long although principally in spring and winter due to the elevated fat content in milk in the spring and winter months.