The set of attributes that form the unique identity of a wine. In general the name of the estate, the region, the grape variety, the appellation (and the vintage if there is one), the vintage and sometimes the vintage, or even a specificity on the harvest or the vinification.
Example: an Alsace grand cru Eichberg late harvest Riesling is defined by its region to locate it (Alsace), its appellation to prove its quality (grand cru Eichberg), the specificities of the harvest to denote certain qualities of the wine (late harvest ) and its grape variety to give an idea of ​​the type of wine (riesling).