style of wine is lighter and similar in sweetness to Verdelho, but can be expected to be made from Negra Mole, and is primarily used as an apéritif. Accounts conflict as to how this style was developed. The most common name derives from the vineyards on the steep hillsides, where irrigation was difficult, and the vines were dependent on the local rainwater for survival. Another theory involves a shipment destined for the American colonies that was accidentally diluted by rainwater while it sat on the docks in Savannah, Georgia, or Funchal. Rather than dump the wines, the merchants tried to pass it off as a "new style" of Madeira and were surprised at its popularity among the Americans. Another theory as to how Rainwater was named was when a gentleman in Savannah, Georgia tasted a Madeira and declared "this is as fine as Rainwater." Characteristics Exposure to extreme temperature and oxygen accounts for Madeira's stability; an opened bottle will survive unharmed indefinitely. As long as a cork is put into the top of the bottle to prevent the effects of evaporation, fruit flies, and dust, a vintage Madeira, once opened, can last for decades. Properly sealed in bottles, it is one of the longest-lasting wines; Madeiras have been known to survive over 200 years in excellent condition. It is not uncommon to see 150-year-old Madeiras for sale at stores that specialize in rare wine. Vintages dating back to 1780 are known to exist. The oldest bottle that has come onto the market is a 1715 Terrantez. Before the advent of artificial refrigeration, Madeira wine was particularly prized in areas where it was impractical to construct wine cellars (as in parts of the southern United States) because, unlike many other fine wines, it could survive being stored over hot summers without significant damage. In the Americas, Madeira was traditionally stored in the warm attics of houses. Uses Most Madeira is consumed as wine. Popular uses include apéritifs (pre-meal) and digestifs (post-meal). In Britain it has traditionally been associated with Madeira cake. Because Madeira has a very high acidity, it can be paired with any food, even citrus or balsamic. Also, although it is sweet, even the Malmsey has a dry finish, so it does not get killed by the sweetness of desserts and pudding. This makes it the most versatile of all dessert wines. Whereas most sweet wines are rendered dry