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
Tasmanian wine was one of the earliest regions in Australia to be planted with vines and was even the source of cuttings for the first vineyards in Victoria and South Australia. It was also home to some of the earliest wines to gain attention outside of the county with a fortified dessert wine by Bartholomew Broughton being praised by one English writer as Australia's equivalent to Port. Being an island, Tasmania has a temperate climate that is marked by the strong winds of the Indian Ocean, Bass Strait and Tasman Sea. These winds necessitate the use of large screens around the perimeter