California is the largest and most influential wine region in the United States, producing over 80% of the country’s total wine volume. The state’s vast size encompasses a remarkable diversity of climates and topographies, from the cool, foggy coast to the hot, sun-drenched inland valleys. This allows for the successful cultivation of over 100 different grape varieties, though the state is best known for its world-class Cabernet Sauvignon and Chardonnay. Its winemaking history, dating back to the 18th century, has been punctuated by periods of challenge and triumph, including Prohibition and the iconic Judgment of Paris tasting in 1976 that elevated its reputation globally.