The Alsatian bottle, nicknamed "flûte du Rhin" or "flûte alsacienne", is immediately recognizable among all the bottles in the French wine region. Slender, elegant, and with a characteristic emerald green color, it is the only permitted packaging form for AOC Alsace wines, with the exception of Crémants. This regulatory requirement dates back to 1959 and aims to assert the strong visual identity of the region on shelves and tables around the world. This silhouette is shared with German and Austrian wines, a legacy of a common Rhenish history shaped by centuries of cross-cultural influences. Beyond its symbolic value, this long and narrow bottle offers a practical advantage: it slightly slows the aging of the wine by limiting the surface area in contact with the cork, which is particularly suited to the age-worthy white wines produced in Alsace.