Veraison is an annual milestone in grape ripening. It is when the red/purple grapes change from a hard, milky-green to purple. That process started late last week in our Marquette and Frontenac. St. Croix, Sabrevois, and Foch will follow soon. Veraison also happens with white grapes. They change from a hard milky-green to a translucent, yellow. But, it is not just color that changes. At veraison, the acid levels start to fall, sugar increases, and phenolic compounds start to develop.
We are checking all trellises to make sure they are robust and ready for mechanical harvesting. We are also counting the vines we need to replace next year so we can get an order placed. And, we are getting equipment ready for harvest.