So, what is veraison? It is the point at which the grapevines move from berry growth to berry ripening. Berries start turning color and sugar starts to concentrate inside the grape and the acid starts to decline.
While veraison is most obvious on red wine grapes, white grapes also go through veraison. Their color change isn’t as dramatic as the reds, however they do change from green to a more yellow or golden green.
This also means that there is now approximately 45 days until the beginning of harvest. Winemakers are now very closely watching and testing the grapes to find the point where the sugar content and acidity are just right for the particular wine they are trying to produce. So, the excitement begins, and winemakers, cellar rats, and the vineyard crew start getting ready for intense non stop work.