The world's highest-altitude commercial vineyard is located in Tibet, China, at approximately 11,500 feet above sea level. Altitude is measured by a vineyard's elevation above sea level and can range from 33 feet, as seen in some Bordeaux vineyards, to 2,000 feet in parts of Napa Valley, or even 10,000 feet in areas of Argentina. Temperatures drop as altitude increases, resulting in a slow ripening process that preserves grape acidity while enhancing aromatic compounds. Exposure to ultraviolet rays intensifies at these extreme altitudes, prompting the grapes to protect themselves by thickening and darkening their skins; this yields wines with intense color and pronounced tannins. Higher altitude also ensures greater airflow for the vines, which helps reduce the risk of disease.
Author: Maytte Rivera
