The Cluster, the Whole Cluster, and Nothing but the Whole Cluster? Whole-Bunch Pinot Noir in the Willamette Valley

Material other than grapes, or MOG, is assiduously avoided by winemakers. Leaves, bugs, pebbles, sticks, and other debris are removed before grape clusters are processed. But before the prevalence of destemming machines, stems, which strictly speakin...