The Clef du Vin enables you to instantly reveal the qualities of a wine. It works effectively on all types of wine: white, sparkling, rosé, red and naturally sweet wines. With a simple dip of the Clef du Vin in your wine, it allows you to instantly tune the wine to your taste. Its unique process will reveal within seconds the qualities in the wine. You will also be able to easily determine the aging potential of your favorite wines.