How Fortification Works
The timing of spirit addition determines the wine's sweetness:
- Before fermentation completes — brandy kills the yeast, stopping fermentation and preserving unfermented grape sugar. This produces sweet styles like Ruby Port, Banyuls, and Muscat de Beaumes-de-Venise
- After fermentation completes — all sugar has been converted to alcohol, and brandy is added to a dry wine. This produces dry styles like Fino Sherry and Sercial Madeira
The spirit used is usually a neutral grape brandy at 77% ABV, added in precise quantities to achieve the desired final alcohol level.
Major Fortified Wine Styles
- Port (Portugal) — sweet red wine from the Douro Valley, fortified mid-fermentation. Styles range from young Ruby to aged Tawny and rare Vintage Port
- Sherry (Spain) — from Jerez, using Palomino grapes. Ranges from bone-dry Fino to lusciously sweet Pedro Ximénez
- Madeira (Portugal) — unique for its estufagem heating process, producing virtually indestructible wines that can age for centuries
- Vin Doux Naturel (France) — Languedoc-Roussillon speciality including Banyuls, Maury, Rivesaltes, and Muscat de Frontignan
Serving and Food Pairing
Fortified wines are among the most versatile food wines. Dry Sherry pairs brilliantly with tapas, seafood, and nuts. Tawny Port complements caramel desserts and blue cheese. Madeira's acidity makes it ideal with rich sauces and smoked foods. Most fortified wines benefit from slight chilling and are excellent as aperitifs or digestifs.