Grape seedCOLOR has LITTLE EFFECT

摘要

Winemakers have long held that the changing color of a grape s seed serves as a harvest signal, that the greener the seed at harvest, the more tannin characteristics and bitter taste imparted to the wine. However, researchers at Washington State University have found that changes in seed color have less to do with wine tannins than previously thought. In fact, their results after one year's study were so different — and opposite — from what was previously thought, they completed a second year of study to confirm the results."It's an interesting one, mostly because we don't think winemakers should be paying attention to seed browning," said fames Harbertson, associate professor of enology at the Chateau Ste. Michelle WSU Wine Science Center in Richland, Washington. "It justdoesn't really change how much tannin gets extracted the wine."