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WSET Diploma White Grape Varieties Part 2. Mary Gorman, DWS October 2010. White Grape Varieties - Part 2. Riesling Chenin Blanc Viognier Gewürztraminer Muscat Trebbiano. Winemaking Choices. Harvest date (level of ripeness) Selection & handling
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WSET Diploma White Grape Varieties Part 2 Mary Gorman, DWS October 2010
White Grape Varieties - Part 2 • Riesling • Chenin Blanc • Viognier • Gewürztraminer • Muscat • Trebbiano
Winemaking Choices • Harvest date (level of ripeness) • Selection & handling • Crush & de-stem + press or whole cluster pressing • Free run juice or/and press wine • PFM / cold soak • Settling / clarification • Fermentation vessel - barrel, INOX, mix + if barrel size and age of barrel • Yeasts - cultured , natural or mix • Fermentation temperatures • Reductive or oxidative winemaking • Must adjustments (acid, SO2, enzymes, DAP) • Malolactic fermentation - induced, suppressed • Lees ageing • Batonnage • Ageing: Oak, INOX - type, age and seasoning of oak, length of maturation time • Finishing - Clarification, stabilization and filtration • Dryness, Residual sugar, spritz
Aromatic variety Purity of varietal expression Preserves identify wherever grown Style versatility Lynchpin of German wine industry Lots of name prostitution Spawned lots of crossings Riesling
Undervalued Jewel Semi-aromatic variety Style versatility Synonyms Pinot de la Loire Pinot d’Anjou Steen Geographic spread Loire Valley South Africa Australia Chenin Blanc
Chenin Blanc • Origin • In the Vineyard • At the Winery • Styles • Key regions • Quality and Ageability
Origin: 2004 - DNA shows likely offspring of Freisa - so related to Nebbiolo Aromatic variety Viognier love affair - alternative to Chardonnay Difficult to grow Geographic spread France Australia California Viognier
Viognier • Origin • In the Vineyard • At the Winery • Styles • Key regions • Quality and Ageability
Origin = Termeno Easy to recognize, difficult to spell Strongly aromatic High alcohol and low acid Synonyms Traminer Aromatico Roter Traminer Savagnin Rosé Geographic spread France, Italy, Germany New Zealand, California Gewürztraminer
Gewürztraminer • Origin • In the Vineyard • At the Winery • Styles • Key regions • Quality and Ageability
Oldest vine known to man Over 200 variations - but three key types Muscat à Petits Grains Muscat of Alexandria Muscat Ottonel Aromatic variety Color ranges from white to near black Diversity of style Geographic spread Globally in warmer climates Muscat
Muscat • Origin • In the Vineyard • At the Winery • Styles • Key regions • Quality and Ageability
Neutral variety #1 white variety in Italy Many sub-varieties Trebbiano Toscano Trebbiano Romagnolo Trebbiano di Soave / Lugano Trebbiano Toscano synonyms Ugni Blanc Saint Emilion White Hermitage Mediocre wines High acidity and high yielding = major strengths Trebbiano
Trebbiano • Origin • In the Vineyard • At the Winery • Styles • Key regions • Quality and Ageability