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Flash Détente: Implications for Luxury Winemaking

Flash Détente: Implications for Luxury Winemaking. Rick Jones Barry Gnekow Consulting Winemakers Napa Wine Technical Group 23 February 2011. How Flash came to California… Finally. INRA J.L. Escudier/Peche Rouge. Initial CA Pilot Trial (1999) Bonny Doon, CSUF, Berringer, et. al. IMECA.

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Flash Détente: Implications for Luxury Winemaking

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  1. Flash Détente: Implications for Luxury Winemaking Rick Jones Barry Gnekow Consulting Winemakers Napa Wine Technical Group 23 February 2011

  2. How Flash came to California… Finally

  3. INRA J.L. Escudier/Peche Rouge Initial CA Pilot Trial (1999) Bonny Doon, CSUF, Berringer, et. al IMECA Pera Della Toffola Dead End 10 Year Hiatus Wine Network Australia M. Parrish Steve Peck J. Lohr Oenodev Franck Noguiez Rick Jones STS Centrifuge Ashley Whittingtion Constellation Other Large CA Winery Material Pera Barry Gnekow Della Toffola USA Hahn Estates Monterey Wine Co Eric Lauman The Vintners Group

  4. Flash Détente or ThermoFlash Definition: Rapid heating of grapes (2-5 minutes) to very high temperature (190o F), followed by instantaneous cooling via vacuum chamber, causing immediate extraction of color, tannin and colloids in skins due to vacuole rupture.

  5. Quality Properties of Flash • Virtual elimination of Methoxy-Pyrazines (and other unwanted grape volatiles?) in flash water. • Greater extraction of color and tannin and (in some cases) more stable color and structure • Flexibility in wine style (e.g. barrell fermentation of reds) • Elimination of Lacase activity • Sugar increase (1-4 Brix)if flash water discarded • Higher fruit expression (both varietal and “amylic” fruit)

  6. Pyrazine RemovalIBMP

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