Acidity & Aging

My situation is that the total acidity (TA) rises during the aging process.What could be causing this? This content is only available to members.

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.