Port and Fortified Wine Masterclass

Ruby and Tawny Port represent two distinct ageing trajectories. Ruby Port (including Reserve and LBV) is aged in large vats or tanks — the large volume minimises contact with air, preserving deep ruby colour and fresh, dark fruit character. Tawny Port is aged in small oak barrels (typically 550L pipes) that allow controlled oxidation: the wine's colour gradually shifts from ruby to amber-orange ("tawny"), and it develops dried fruit, nut and caramel characters through oxidative ageing. Tawny age categories (10, 20, 30, 40-year) indicate the average age of the blended wines in the final product — not a single vintage. A 20 Year Tawny is a blend of wines averaging 20 years' barrel ageing, with typically 10–25% of the wines being considerably older. The difference in mouthfeel is equally striking: Ruby is fruity and plush; aged Tawny is nutty, complex, drier-finishing and more delicate.

LBV (Late Bottled Vintage) is a single-vintage Port aged in cask for 4–6 years before bottling, compared to the standard 2 years for vintage Port. LBV comes in two styles. Filtered LBV: stabilised and filtered before bottling; immediately approachable, no sediment, no need to decant; the commercial mainstream. Unfiltered (traditional) LBV: bottled without filtration, like vintage Port, with a small deposit forming over time; benefits from decanting; can improve in bottle for 5–10 years. The distinction matters enormously. Filtered LBV is essentially a ready-to-drink, premium Ruby — good value, consistent. Unfiltered LBV is closer in character to single-quinta or vintage Port: more complexity, more texture, more ageability, but requiring a decanter and some cellar time. Top producers (Niepoort, Ramos Pinto, Quinta do Crasto) make excellent unfiltered LBV at prices well below vintage Port.

Sherry and Port are both fortified wines — wines where fermentation is arrested by the addition of grape spirit (aguardente for Port; neutral grape spirit for Sherry). But their production philosophies differ fundamentally. Port is fortified during fermentation to preserve sweetness; Sherry is fermented to dryness and then fortified. Port is principally a dessert or post-dinner wine; Sherry ranges from bone-dry aperitif (Fino, Manzanilla) to rich, sweet dessert wine (Pedro Ximénez, Cream). Tasting the two side by side illuminates what "fortified" means in practice and how dramatically different oxidative ageing can express itself depending on terroir, grape variety and production method. Comparing Graham's vintage Port to Gonzalez Byass Apostoles (a complex, oxidative Palo Cortado) shows both the shared mechanism and the entirely different wine traditions it creates.

Vintage Port requires horizontal storage at 12–14°C in a dark environment with stable humidity — the same conditions as fine Bordeaux or Burgundy. Over years and decades, it throws a significant deposit of tartrates and pigment against the lower side of the bottle. Before serving, stand the bottle upright for 24–48 hours to allow the deposit to settle. Then decant carefully using a candle or torch to illuminate the shoulder of the bottle, stopping pouring as the sediment reaches the neck. A vintage Port opened young (under 10 years) can be served immediately after decanting; an older wine may benefit from 1–2 hours in the decanter to open up. Serve at room temperature (16–18°C) — not refrigerator-cold. Once opened, vintage Port deteriorates relatively quickly: consume within 2–3 days, or use a wine stopper and refrigerate. See decanting explained for the full technique.