Mac Forbes operates in the Yarra Valley, Victoria's cool-climate heartland where elevation and maritime influence shape wines of precision and structure. The winery works across the region's signature varieties: Chardonnay, Riesling, and Pinot Noir, alongside Nebbiolo—a choice that reflects the valley's capacity for complex, age-worthy reds. Hoddles Creek, a Chardonnay, and RS20 Riesling both command prestige ratings of 95, demonstrating technical mastery across white wine styles. EB41 Showdown 3, a Nebbiolo and Pinot Noir blend, rates at 94. These wines have been assessed by Decanter, Wine Spectator, Wine Advocate, Wine Enthusiast, and Falstaff. The portfolio suggests a winemaker attuned to varietal expression and the particular terroir of the Yarra Valley—a region known for producing wines with the tension and minerality that come from cool growing seasons and careful site selection.