When it comes to wine assembly, we must note that mentioning the name of the grape on the “AOC Alsace” label is optional. It is therefore possible to have a blend of wines from several grape varieties in “Alsace AOC” bottles without it being noted on the label.

In practice, the term Edelzwicker is widely used to describe any assembly of white AOC Alsace grape varieties with no indication of percentage. The grapes are vinified separately or together. The mention of the vintage is optional.

Historically, these different grape varieties were from the same plot. Originally called "Zwicker" (meaning “assembly”), the prefix Edel (meaning “noble”) was added in order to mark the presence of noble grape varieties chosen to replace the varieties produced on a large scale.