Valmur - Appellation and Classification

Appellation and Classification

The main Chablis Appellation d'Origine Contrôlée was designated on January 13, 1938, but the junior appellation of Petit Chablis was not designated until January 5, 1944. All the vineyards in Chablis are covered by four appellations with different levels of classification, reflecting all-important differences in soil and slope in this northerly region. At the top of the classification are the 7 Grand Cru vineyards, which are all located on a single hillside near the town of Chablis. Second in quality are the Premier Cru vineyards, which numbered 40 at the turn of the 21st century, covering an area of 1,853 acres (750 ha). Next is the generic AOC Chablis which, at 7,067 acres (2,860 ha), is the largest appellation by far in the region and the one exhibits the most variability between producers and vintages. At the lowest end of the classification is "Petit Chablis" which includes the outlying land. As of 2004, 1,380 acres (560 ha) of a permitted 4,448 acres (1,800 ha) in the Petit Chablis appellation was planted.

Soil and slope plays a major role in delineating the quality differences. Many of the Premier Crus, and all the Grand Crus vineyards, are planted along valley of the Serein river as it flows into the Yonne. The Grand crus and two of the most highly rated Premier Crus (Montée de Tonnerre and Fourchaume) are located on southwest facing slopes that receives the maximum amount of sun exposure while the rest of the Premier crus are on southeast facing slopes. All of Chablis' Grand Cru vineyards and many of their better Premier Cru vineyards are planted on primarily Kimmeridgean soil which is believed to impart more finesse and structure to the wines. Other areas, particularly the vast majority of Petit Chablis vineyards, are planted on slightly younger Portlandian soil.