Solera by the producers of sherry. In a Spanish sherry "solera", the vintner may transfer about a third of each barrel a year. A solera sherry has to be at least three years old when bottled. A quite similar process is called sostrera, used to produce fortified wines in the Mediterranean regions of France. In Sicily, where Marsala wine is made, the system is called "in perpetuum". Solera vinification is used in the making of Mavrodafni ("Black Laurel"), a fortified red dessert wine made in the Northern Peloponnese in Greece. Exceptional "Mavrodafni" vintages are released every 20 or 30 years: they
Flavored fortified wine the popularity of cheap, fortified wines in the United States arose in the 1930s, as a product of Prohibition and the Great Depression: While overtaken somewhat in the low-end alcoholic drink market by sweetened malt beverages by the 1990s, the appeal of cheap fortified wines to the poor and homeless has often raised concerns: In 2005, the Seattle City Council asked the Washington State Liquor Control Board to prohibit the sale of certain alcohol products in an impoverished "Alcohol Impact Area". Among the products sought to be banned were over two dozen beers, and six wines: Cisco, Gino's Premium Blend,