When is the term "commune" used in Burgundy?

The term "commune" in Burgundy is specifically used to refer to wines produced in single communes or villages. Burgundy is renowned for its nuanced classification system, where wines are often designated by the village or commune where the grapes are grown. This reflects the local terroir and the unique characteristics imparted to the wines from those specific areas.

Wines classified under this term are typically known as "villages" wines, which sit above regional wines but below premier and grand cru classifications in the hierarchy. Each commune has its own distinct attributes, and wines produced there are reflective of the local soil, climate, and winemaking traditions, making the term significant in understanding Burgundy's wine classifications.

The other choices do not accurately capture the meaning of "commune." For instance, while there are regional wines in Burgundy, they do not fall under the "commune" category, and there is no specific age requirement associated with the term. Furthermore, wines made from international grape varieties are generally not referred to as commune wines, as they typically use indigenous grape varieties to match the region's traditional winemaking practices.