Sometimes we get several questions that revolve around a similar theme. The Wine Wizard had several questions this go-round on volatile acidity and malolactic fermentation. She provides some specifics for winemakers who have bigger picture problems on their hands.
It’s hard to get universal ripening of your grapes in a small vineyard with lots of variability. The Wizard provides some pointers as well as clues to determining grape ripeness when the refractometer is left home. Plus, the threat of contamination from “killer” yeast.