Highest appellation in the French wine-growing region Alsace, which is one class above the normal AOC . The designation is "Alsace Grand Cru" followed by an indication of the location on the label. Although it was issued in 1975, the first list of 25 sites was not published until 1983. A new regulation came into force in 1992, when 50 sites in 47 municipalities were classified. The size varies considerably, ranging from 3.2 hectares at the Kanzlerberg to 80 hectares at the Schlossberg. An important prerequisite for the classification was or is above all the geological uniformity within a location.
The plots must (since 2001) be planted with a minimum density of 4,500 vines per hectare. The basic maximum yield is 55 hl/ha, which can be increased by 20% annually, depending on the weather, to a maximum of 66 hl/ha. Mechanical harvesting is prohibited, it must be done by hand. The wines must have a minimum alcohol content of between 11 and 14% vol. The wines can also be vinified as "Vendange Tardive" (late harvest) or "Sélection de Grains Nobles" (from noble rotten grapes).
The vineyards of all Grands Crus cover a total of around 1,700 hectares of vines. The production volume of Grand Cru wines is only 4% of Alsace. The most famous producers are listed in each of the Grands Crus, including Dirler-Cadé, Hugel et Fils, Kuentz-Bas, Domaines Schlumberger and Trimbach. The Alsace is divided administratively into two départements. These are the southern Haut-Rhin (Upper Rhine), which is considered a better wine region, and the northern Bas-Rhin (Lower Rhine). The 51 Grands Crus are: