Harm produces wines from Wachau, the Danube Valley region of Lower Austria renowned for mineral-driven white wines of precision and age-worthiness. The winery's portfolio centers on Riesling and Grüner Veltliner, the twin pillars of Austrian viticulture. The Dürnsteiner Kellerberg Riesling, sourced from a classified vineyard site, demonstrates the region's capacity for complex, structured Riesling with depth. The Grüner Veltliner Silberbichl expresses the variety's characteristic white pepper and herbal notes alongside the saline minerality Wachau terroir imparts. A third offering, the Riesling Viesslinger Bruck, rounds the range. Wine Spectator and Wine Enthusiast have rated these expressions, affirming their technical merit within the competitive Austrian white wine landscape.