Veraison

In viticulture, veraison (French: véraison, IPA: [veʁɛzɔ̃])[1] is the onset of the ripening of the grapes.

The official definition of veraison is "change of color of the grape berries".

Grape berries follow a double sigmoid growth curve.

As ripening continues, the fruit becomes attractive to animals due to changes in aroma from acidic to sweet with fruitiness.

Fête de la Véraison is a medieval festival held in the famous winemaking village of Châteauneuf-du-Pape.