Mills Reef produces wines from Hawke's Bay, New Zealand's premier wine region on the North Island. The winery's portfolio centers on three flagship expressions: Estate Merlot–Cabernet, a blend anchored in Merlot and Cabernet Sauvignon; Elspeth Syrah, built from Shiraz; and Elspeth Chardonnay. These wines have been assessed by major critics including Wine Spectator, Wine Advocate, Wine Enthusiast, Decanter, and Falstaff. Hawke's Bay's warm, dry climate and diverse soils support both Bordeaux varieties and cool-climate whites, a range Mills Reef demonstrates across its range. The Estate Merlot–Cabernet and Elspeth Syrah show the region's capacity for structured red wines, while the Elspeth Chardonnay reflects the precision possible in the area's cooler microclimates.