The grapes are grown in black schists with some granitic sands present, and the vines are bush-trained, organically-farmed,and hand-harvested. A long pre-fermentation cold soak in cement vats occurs, where wild yeast does the work. The following varietals make up the field-blend for “28 UVAS”: Alicante Bouschet, Alvarelhão, Baga, Bastardo, Bastardo Roxo, Donzelinha Tinto, Esgana Cão Tinto, Folgazão Roxo, Jaen, Malvasia, Malvasia Roxa, Mourisco, Mourisco Semente, Mourisco de Trevões, Periquita, Refute, Souto, Tinta Amarela, Tinta Barroca, Tinto Cão, Tinta Carvalha, Tinta da Barca, Toureira Fêmea, Toureira Franca, Tinta Francisca, Toureira Nacional, Tinta Roriz, Tinta de Tabuaço