Barros produces Port wines from the Douro region of Northern Portugal, drawing on the steep terraced vineyards and schist soils that define this UNESCO-listed landscape. The winery's portfolio centers on aged tawny and vintage expressions built from the region's signature varieties: Touriga Nacional, Tinta Roriz, Touriga Franca, and Tinto Cão. The D. Matilde Tawny Reserva Porto blends five of these grapes into a complex, oxidative style, while the 20 Años and 10 Anos Portos showcase the house's approach to extended barrel aging. Wine Enthusiast, Wine Spectator, and Decanter have rated these wines, with the D. Matilde and both aged expressions earning scores in the low 92-point range. Port production demands precision in fortification, blending, and cellaring—disciplines evident in Barros's range.