Is it merlot or Merlot? Grenache or grenache? And is it sauvignon blanc, Sauvignon blanc or Sauvignon Blanc? As a language professional, it is my job to know: are the names of grape varieties in wines capitalized? Admittedly, I have tried to find the rule many times, but have never come up with a satisfactory answer. So it’s time to set the record straight once and for all by summarizing my research and issuing my professional recommendation.

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