Dierberg produces Pinot Noir and Chardonnay from California vineyards. The Drum Canyon Vineyard Pinot Noir and Chardonnay represent the winery's core focus, with the Pinot Noir showing particular depth across multiple vintages. A second Pinot Noir, the Steven, rounds out the portfolio. The wines have been assessed by Wine Enthusiast, Wine Advocate, Wine Spectator, Decanter, and Falstaff, reflecting their place within serious critical discourse. Pinot Noir and Chardonnay demand precision in the vineyard and cellar—cool-climate sensitivity, careful harvest timing, and restrained oak work. Dierberg's expression of these varieties suggests an understanding of those demands.