Does a winery have a "signature taste"? For example would an experienced wine connoisseur be able to taste the difference between a Bordeaux by "Chateau Margaux" and one from "Chateau Giscours"? Or a Chard from the vineyards of Pride and Paloma? In a blind taste test. Or would they just be "wine A vintage X" and "wine B vintage X"? Could you take a sip of Cheval Blanc and immediate tell blind?