Geyer operates in the Barossa Valley, South Australia's renowned region for bold, structured reds. The winery works primarily with varieties that thrive in the region's warm climate: Montepulciano, Grenache, Shiraz, and Petit Verdot, among others. Its portfolio centers on two flagship expressions. The Montepulciano showcases the Italian variety in an Australian context, while Big Easy blends Petit Verdot, Montepulciano, Shiraz, and Malbec into a multi-varietal statement. Sands Grenache offers a single-varietal alternative. These wines have been assessed by Wine Advocate, Wine Enthusiast, and Wine Spectator, reflecting the winery's engagement with prestige critical evaluation. Geyer's approach emphasizes the character of Barossa fruit across both traditional and unconventional grape selections.