It takes three days to reach optimum ripeness.
When the grapes have attained the proper degree of ripeness, or rather over-ripeness, they are gathered with the greatest care, the berries being frequently cut off from the branches singly, and sorted according to their appearance.
The flavors in Cabernet Sauvignon are highly dependent on the grapes' ripeness when harvested.
To test for ripeness, look at the tendrils near the stem.
Many of the winery's Pinot Noir wines are spectacular, providing a rich ripeness you can only find in California Pinot Noirs.