Master Sommelier Tim Gaiser moderated an Alto Adige winery panel last week in Houston with speakers Armin Gratl of Cantina Valle Isarco, Andi Punter of Franz Haas and Kathrin Werth of Muri-Gries Wine Estate and Monastery Cellar. These are my notes from the "Alto Adige: Taste Italian Wines at Their Peak" seminar and tasting. The Wines: The first two hail from Italy's northernmost wine growing zone, Valle Isarco, which is home to 860 acres of vineyards set at steep elevations of 1312 to 3117 feet, they are densely planted and terraced. The mica schist and sandy gravel soils of the area add a mineral component to the wines while the Alpine influence enhances the purity. White wine makes of 95% of production, Muller Thurgau and Gewürztraminer are important grapes along with Sylvaner and Kerner. Alto Adige Valle Isarco Sylvaner DOC Aristos 2015 by Cantina Valle Isarco - Lively aromas and flavors of melon and apricot with a distinct mineralty that Gaiser called "