Tears of wine in a wine glassTears of wine in a wine glass

Industry jargon

Wine barrel toasting visualWine barrel toasting visual

… the streaks that form on the inside of the glass when swirling
the wine.

People often say it is caused by glycerine and is indicative of viscosity, meaning a thick and syrupy consistency. In truth, however, tears of wine – also known as wine legs – are caused by alcohol. The higher the alcohol content, the higher and sharper the tears of wine appear. If you’re a bit of a science nerd, google «Marangoni effect» …