Extra Brut, Grüner Veltliner – Sekt, DIWALDDrink because Refreshing and at the same time full bodied sparkling Grner Veltliner! Grapes 100% Grner Veltliner Winemaking The Sekt sparkling wine is produced from Grner Veltliner grapes grown in loess soils, of course, in cooler sites. Compared to other sparkling wines, the base wine for the Sekt comes from fruit which is harvested relatively late, at the beginning of October when the grapes already possess a lot of flavour of their own. Character