Ludwig Ehn produces wines from Weinland in Niederösterreich, Austria's largest wine region. The winery focuses on two signature varieties: Riesling and Grüner Veltliner, Austria's flagship white grapes. The Zobinger Heiligenstein 1ÖTW Riesling and Ried Neuberg Reserve Grüner Veltliner represent the winery's core offerings, both achieving ratings of 92.0 from prestige critics including Decanter, Wine Spectator, Wine Advocate, and Falstaff. The Titan Grüner Veltliner Spiegel 1ÖTW, rated 91.7, rounds out the portfolio. Niederösterreich's continental climate and diverse terroirs support the mineral precision and aromatic intensity these varieties are known for. The 1ÖTW designation indicates vineyard classification within Austria's quality system.