... than low alcohol wines; Sweeter wines are more viscous the tears will flow slower down the sides of a glass. Wine Legs on Port. Wine legs on a glass of 20% ABV Ruby Port with about 90 g/L residual sugar. More 'legs' or droplets can indicate either high alcohol content and/or high sugar content in wine. read more
The short answer is they indicate alcohol in water - the more alcohol evaporation from the wine the more exaggerated the tears will be. This can be stopped by covering the glass and waiting (they don’t happen in a wine bottle because the empty space is saturated with alcohol and water). read more
Wine legs are the droplets of wine that form on the inside of a wine glass. read more
Tears of wine show clearly in the shadow of this glass of 13.5% Caluso Passito dessert wine The phenomenon called tears of wine 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. read more
Swirl a glass of wine or liquor and observe the wine legs or tears of wine on the glass. If you cover the glass and swirl it, wine legs eventually will stop forming because the alcohol will be unable to evaporate. read more