Dow’s Vintage Ports are only produced in years of exceptional quality and represent only a very small part of the total company’s production in that year. On average only two or three times every ten years are the weather conditions sufficiently good to allow for the making of Dow’s Vintage Port. Dow’s Ports avoid an over-rich style and requires a very high degree of skill in wine making and great experience in selecting the finest wines of each year and each vineyard. These wines are aged in seasoned oak casks for some 18 months and are bottled without any filtration or fining whatsoever.