Winemaking is a very special enterprise that has been going on for centuries. From the very beginning, winemakers have sought to produce wines that were more interesting, more flavorful and more complex. One way they do this is by blending. Blending has evolved into high art. Some winemakers make single-vineyard wines but pick each block separately and then blend those blocks to maximize complexity. Other winemakers start with field blends, where different grapes grow side by side but are pic...