A mouth-watering sensation indicates that the wine is high in acidity, which would then tell you that the wine was probably made in a cool climate region.
To assess acidity, there’s a little trick you can do. After tasting the wine, tilt your head forward to see how much saliva rushes to the front of your mouth. A mouth-watering sensation indicates that the wine is high in acidity, which would then tell you that the wine was probably made in a cool climate region.