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Washington State Viticulture. New York Wine Industry Workshop April 3-5, 2002. Daily Mean Temperature. Heat Summation. Average Rainfall (mm). Average Sunshine Hours. 1993 Merlot 1,800 Cabernet Sauv. 1,400 Syrah 0 Cabernet Franc 150 Lemberger 250 Other 400 Total 4,000. 2001
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Washington State Viticulture New York Wine Industry Workshop April 3-5, 2002
1993 Merlot 1,800 Cabernet Sauv. 1,400 Syrah 0 Cabernet Franc 150 Lemberger 250 Other 400 Total 4,000 2001 7,100 6,300 2,000 841 174 800 17,215 Red Acres
1993 Chardonnay 2,600 Riesling 2,000 Sauvig. Blanc 800 Semillon 700 Gewurz. 300 Pinot Gris 0 Other 100 Total 7,100 2001 7,400 2,291 841 725 493 300 60 12,110 White Acres
Riesling Viticulture • Cold Hardy • Bunch rot problem only 1 in 5 years • Overhead sprinklers a problem • Yakima Valley later ripening • Good acid balance • Ample heat units to maturity • Yields: 5 - 8 tons/acre (average 7 tons/acre)
Riesling Success • 1974 Los Angeles Times Competition • 1972 Chateau Ste. Michelle Riesling #1 • 1977 First Late Harvest Riesling • 1978 First Riesling Ice Wine • Acreage of Riesling soars • 1991 acreage decline with recession • 2001 growers planting Riesling again
Riesling Market • Over 350,000 cases Riesling per year. • Washington State became known as a Riesling producer • Difficult to develop reputation for Chardonnay, Cabernet, Merlot, and Sauvignon Blanc • Riesling Demand is Increasing
WA Wine Industry • 170+ wineries • #4 fruit crop after apples, cherries and pears • #2 wine state after California • Harvested 100,000 tons in 2001
Winemaking • Machine Harvest at night • Press w/o crushing • Juice trucked to Woodinville • Cote de Blanc or Permier Cuvee Yeast • Chill arrest, centrifuge, • Bentonite, cold stabilize, bottle
Dry Riesling 12 g/l RS 7.3 g/l TA 3.05 pH 12.7 Alcohol Johannisberg Riesling 21 g/l RS 7.0 g/l TA 2.95 pH 12.1 Alcohol 2001 Vintage
References • www.wawgg.org • www.washingtonwine.org • Cataclysms on the Columbia. 1979. J.E. Allen and M. Burns. Timber Press. Portland, OR • The Wine Project. 1997. R Irvine and W.J. Clore. Sketch Publications. Vashon, WA