All the Quinta do Infantado vineyards are class A (the best in the Douro Valley). The grapes for the Vintage port are grown in the Serra Douro, Serra de Baixo and Castelos vineyards, covering six, one and a half, and three hectares respectively. Soils here are schistous, allowing the vine roots to delve deep to access water and nutrients to sustain them through the hot Douro summers.

2017 was a vintage characterised by hot, dry weather. Warm temperatures brought forward flowering and fruit set and continued throughout the growing season. This resulted in the 2017 harvest being one of the earliest on record and the Ports produced have the hallmark cocoa and chocolate flavours of a warm year in the Douro.