Fine-Tuning a Tart Grape

摘要

A good wine is a complex blend of flavors, at least some of which are based on the acidity of the wine, which is derived from the acidity of the grape. Grape berry acidity depends on potassium concentration, with high potassium content leading to less acidic fruit. As the grape berry ripens and sugars accumulate, potassium also accumulates. Potassium physiology in grape berries, however, is not well understood.