Quinta da Raza was established by Diogo's forebears in 1791, and today he and Mafalda have 40 hectares of prime vineyard, in the sub region of Celorico do Basto. This is southern Vinho Verde, not too far from the lower reaches of the Douro, and in sheltered uplands at around 250m, with distinct soils. Their classic Vinho Verde is utterly delicious, with fruit quality shining through, whilst varietal offerings are denser, but still with freshness and lightness of touch.
Arinto (once called Pederna here) seems to be especially successful, either bottled varietally, or contributing to blend. There is an excellent small, modern winery at Raza now, but the red is still made by treading in the micro-lagares at the back of old, and rather grand, house built by previous generations.