From the legendary 1840, Fonseca's first Vintage Port release, to the superb declared vintages of the last decade, the house has produced a succession of highly acclaimed wines even in the most adverse moments of history. James Suckling, in his authoritative book on Vintage Port, put it as follows: 'The vintage Ports of Fonseca are perhaps the most consistently great of them all. Not only do they have a striking fleshiness and powerful richness when young, but they retain that youthfulness for decades.' This consistency derives not only from continuity of family involvement, and the knowledge and skill passed down from one generation to the next, but also a close link with the vineyard. The firm's three estates of Cruzeiro, Panascal and Santo Antnio are the heart of the distinctive character of Fonseca's Vintage Ports.

Fonseca has long been a leader in sustainable and organic viticulture in the Douro Valley. It was the first Port house to produce a fully certified organic Port, reflecting its commitment to protecting the unique landscape and biodiversity of the region. Across its vineyards, Fonseca focuses on soil health, biodiversity and responsible water management, using dry-farming practices, natural pest control and carefully targeted vineyard treatments. Sustainability also extends to the winery through initiatives such as solar energy, waste reduction and lightweight packaging, supporting a long-term vision of environmentally responsible Port production.