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While Napa Valley is most often associated with top-tier Cabernet Sauvignon, buttery Chardonnay, and now crisp Sauvignon Blanc, it is home to more than 40 different varieties, including about 21 acres of Chenin Blanc. Compare that to Cabernet Sauvignon, which thrives on more than 25,000 acres here, or even Sauvignon Blanc, whose acreage in the valley totals…

