Tears of wine

Tears of wine show clearly in the shadow of this glass of 13.5% Caluso Passito dessert wine

The phenomenon called tears of wine (French: Larmes de vin; German: Kirchenfenster, lit. "church windows") is manifested as a ring of clear liquid, near the top of a glass of wine, from which droplets continuously form and drop back into the wine. It is most readily observed in a wine which has a high alcohol content. It is also referred to as wine legs, fingers, curtains, church windows, or feet.