Fortification is the adding of alcohol to grape juice which is more or less fermented. Pineau de Charentes, Banyuls, Muscat de Beaumes de Venice and especially port are fortified wines. Discover our fortified wines.
the addition of an ingredient for the purpose of enrichment (as the addition of alcohol to wine or the addition of vitamins to food)
Introducing brandy into the fermenting must to stop the fermentation process. By raising the alcohol level, the yeast are killed, fermentation ends and any unfermented sugars remain in the wine. This is the way ports and several other fortified wines are produced.