Kollade på Laguioles hemsida och hittade jag följande text: This Clef du Vin consists of an alloy of metal protected by 4 international patents and was developed over a 10 year period. It has been tested and approved by the world's top sommeliers, wine growers, judges and writers. Using a Clef du Vin, or "wine key", helps simulate the passage of time on a bottle of a wine. Dipped in a glass of wine one second for every year of aging desired, the metal alloy speeds the oxidation process changing the wine's taste, in effect mimicking the effect of cellaring. Wine collectors will use the Clef du Vin to predict how well a bottle may age helping them decide which wines are worth keeping and when their ideal drinking age will be. http://www.laguiole.com/3021.htm Är det någon som har testat? Är det Spinwine-varning?