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Facts, statistics, trivia and more …

  • Age of vine before producing useful grapes — 3 years
  • Age of vine before full production — 5 years
  • Productive lifetime of a vine — 30-35 years
  • Although the quality can remain good, the yield begins to decrease after that
  • Grape clusters in bottle — 4-5
  • Grapes in a bottle — 500-600
  • Clusters on a vine — 40
  • Grapes in a cluster — 75-100
  • Grape clusters in one glass of wine — 1
  • Vines per acre — 500 – 1300
  • Pounds of grapes produced by one vine – 8-12
  • Tons per acre — 4 (average—can vary greatly)
  • Gallons of wine per ton of grapes — 120
  • Gallons of wine per acre — less than 500
  • Barrels per acre — 13.5
  • Bottles per vine — 4-6
  • Bottles per ton — 500—700
  • Bottles per acre — 4,000
  • Cases per barrel — 24.6
  • Glasses per acre — 16,000
  • Glasses in a bottle — 5-6
  • Bottles per 60 gallon barrel — 300
  • Calories in a 5 ounce glass of dry wine — 100-125
  • Fat in a 5 ounce glass of dry wine — 0
  • Carbohydrates in a 5 ounce glass of dry wine — 1-2
  • Cost of acre of new vineyard in Napa Valley — $220,000
  • (some existing property has been sold for $500,000 an acre)
  • Cost of French oak barrel — $1000-1200
  • Cost of American oak barrel — $500-750
  • Average age of a French oak tree used to make barrels — 170 years
  • Number of years an oak barrel is used — 5-8
  • Number of vineyard acres in Napa County (2008) — 45,158(out of a total of 85,120 acres in the entire county) — only 9% of total land area
  • Number of vineyard acres placed in Land Trust never to be developed — More than 20,000 in conservation easements, and 38,000 in agricultural preservation
  • Proportion of total value at harvest of red varietals compared to white—Nearly 3:1
  • Number of wineries in Napa Valley — Approximately 400
  • Number of wineries in Napa Valley built since 1966—300 production facilities.
  • The rest are cooperatively produced
  • Number of people/companies owning Napa Valley vineyards — 626
  • Number of people directly employed in Napa Valley wine industry (wineries, vineyards, vineyard/winery services)— More than 8,000
  • Number of people directly employed in Napa Valley wine industry and resulting hospitality industry—More than 40,000
  • Year grapes first planted in Napa Valley — 1838 (by George Yount)
  • First winery built in Napa Valley after Prohibition — Stony Hill (1951)
  • First large winery built in Napa Valley after Prohibition—Robert Mondavi (1966) (Louis Martini Winery was built in 1933 just prior to the end of Prohibition)
  • Biggest Napa Valley crop before grapes—Prunes
  • Largest corporate owner of vineyards in Napa Valley — Diageo (British corporation)
  • Largest private owner of vineyards in Napa Valley — Andrew Beckstoffer (Beckstoffer Vineyards, St. Helena)
  • Number of cases of Napa Valley wine produced annually— 9.2 million (2006)
  • Gross revenue from sales of that wine — 10.128 billion (2006)
  • Ranking of United States in world wine production (1999)— 4th — 533,596,000 gallons (behind Italy, France and Spain) (2008)
  • Ranking of United States in world wine acreage (1999) — 4th — 905,000 acres
  • Ranking of United States in world wide consumption — Second place – soon to become first
  • Percentage of U.S. wine made in California — 90%
  • Percentage of California wine made in Napa Valley — 4%

Wine quotes

Wine is bottled poetry.
– Robert Louis Stevenson

Wine is sure proof that God loves us and wants us to be happy.
– Benjamin Franklin

To take wine into your mouth is to savor a droplet of the river of human history.
– Clifton Fadiman

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