Sunday, August 17, 2025

Vintage Notes 2025: The Auxerrois is at Veraison

We are splitting work duties in the vineyard. My husband is working in the Chenin Blanc and I am working in the Auxerrois. I can tell that the grapes are coming out of their lag phase, the time after berry set where the grapes stop growing. For white grapes, the "tell" that they are in veraison, or the beginning of ripening is when the berry becomes soft to the touch. For a few days now, I have noticed that the Auxerrois is soft when I handle it so I was curious to know what the Brix was. Yesterday, I brought the hand held refractometer to the vineyard and was surprised when taking the reading that the soft Auxerrois berries were at 15 oBrix! The slightly greener berries were at 13 oBrix.
Here is a photo of the Auxerrois. We only see this in the Auxerrois, where sometimes there are three clusters to a shoot.
It seems early to me that the Auxerrois is already this far along in sugar accumulation. I need to update my chart of the annual cycle of growth. All this means is that we need to bring the nets down in the next few days to protect the ripening grapes!

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