Marsala wine "solera" system used to produce Sherry in Jerez, Spain. Woodhouse recognized that the "in perpetuum" process raised the alcohol level and alcoholic taste of this wine while also preserving these characteristics during long distance sea travel. Woodhouse further believed that fortified Marsala would be popular in England. Marsala indeed proved so successful that Woodhouse returned to Sicily and, in 1796, began its mass production and commercialization. In 1806, it was Benjamin Ingham (1784–1861), arriving in Sicily from Leeds, who opened new markets for Marsala in Europe and the Americas. In 1833, the entrepreneur Vincenzo Florio, a Calabrese by birth and
Sweetness of wine Aszú dessert wines: In Spain, the rules applicable to the sweet and fortified Denominations of Origen Montilla-Moriles and Jerez-Xérès-Sherry In the United States, the wine industry measures the sweetness of must and wine in degrees Brix. Sweetness of wine The subjective sweetness of a wine is determined by the interaction of several factors, including the amount of sugar in the wine, but also the relative levels of alcohol, acids, and tannins. Sugars and alcohol enhance a wine's sweetness; acids (sourness) and bitter tannins counteract it. These principles are outlined in the 1987 work by Émile Peynaud, "The Taste of Wine".