The Quinta do Passadouro has 18 hectares of vineyards in the heart of port country. The estate is owned by the Bohrmann family, who also have holdings in Burgundy, and production was formerly sold to Niepoort. Since 1999, the wine has been made by the dynamic young team of Jorge Serôdio Borges, former winemaker at Niepoort, and his winemaker wife Sandra Tavares.
The vineyards are of schist, which encourages deep roots, on steep terraces at between 100 and 300 metres above sea level, above the Pinhão river valley. They comprise a proportion of 60-year-old, high-density mixed-varietal plantings, over half a century old, with 20 native grape varieties, with some newer lower density plantings.
Green harvesting takes place in summer, and the grapes are ultimately hand picked, yielding about 25 hl/ha. The grapes are sorted and de-stemmed, lightly crushed, then foot trodden in old granite lagares and then cool macerated.
After light basket pressing to avoid extracting hard green tannins, the wine is fermented first in stainless-steel tanks, then in barrel, then matured in French oak barrels, a proportion of which is new.