Quinta das Marias produces wines from the Dão region of central Portugal's Beiras, where granite soils and Atlantic influence shape distinctive reds. The winery focuses on indigenous varieties: Touriga Nacional, Tinta Roriz, and Alfrocheiro Preto. The Cuvée TT Reserva, a blend of Tinta Roriz and Touriga Nacional, represents the house's approach to structured, age-worthy wines. A varietal Touriga Nacional Reserva and single-varietal Alfrocheiro round out the core range. Dão has long been associated with elegant, mineral-driven reds built on these native grapes, and Quinta das Marias' selections have drawn assessment from Wine Advocate, Falstaff, and Wine Enthusiast.