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
Fortified wine distilled spirit, soju, and other ingredients like ginseng, jujubes, ginger, etc., to the rice wine, bears similarity to the above-mentioned fortified wines. Fortified wines are often termed dessert wines in the United States to avoid association with hard drinking. The term "Vins de liqueur" is used by the French. Under European Union legislation, a liqueur wine is a fortified wine that contains 15–22% abv, with Total Alcoholic Strength no less than 17.5%, and that meets many additional criteria. Exemptions are allowed for certain quality liqueur wines. Fortified wine Fortified wine is a wine to which a distilled spirit, usually brandy,