
1. Sherry comes from the area around the Andalucian towns of Jerez and Sanlucar de Barrameda. Its name is an anglicanised version of Jerez (the original Arabic name of which was Sherish).
2. The British love of sherry dates back to Sir Francis Drake's sacking of Cadiz in 1587, following which he brought back nearly 3,000 barrels of sherry which had been waiting to be loaded onto Spanish ships. Many sherry producers were founded by British families and, despite declining popularity in recent years, the UK remains the largest export market for sherry.
3. Palomino is by far the most prevalent grape variety in sherry production and is used in the dry, clear sherries, Fino and Manzanilla. The other two important sherry grapes are Pedro Ximenez (also known as PX) and Moscatel. These latter two varietals can be used to make sweet sherries.
4. Following harvesting and pressing in early September, the Palomino grapes are left to ferment in stainless steel until late November. The resulting dry white wine (about 11% abv) is then fortified using destillado. The destillado is a 50:50 mixture of distilled white wine and older sherry. This fortified wine is then stored in American oak casks and aged in the solera system, which involves moving portions of the wine down through a series of barrels, for at least 3 years (see photo). The age of a sherry is given as the age of the youngest component part in the final blend.
5. In bottle, sherry will not develop further, although it can keep for ages without deteriorating. Once opened however, it will oxidise, especially at the lighter end of the spectrum (Fino and Manzanilla). So drink it quickly!
See the official sherry site here.
See a later - and more complete - post on sherry here.