Lui produces wines from Mendoza, Argentina's premier wine region. The winery focuses on Malbec and Cabernet Franc, two varieties that thrive in Mendoza's high-altitude terroir. The Gran Reserva Malbec, rated 94.5 by prestige critics including Wine Advocate, Wine Enthusiast, and Wine Spectator, represents the winery's commitment to the region's signature varietal. Cabernet Franc receives equal attention: the Gran Reserva Cabernet Franc (92.7) and Espontáneo Cabernet Franc (92.0) demonstrate the winery's range with the variety across different styles. Both red grapes benefit from Mendoza's intense sunlight, cool nights, and well-draining soils, conditions that yield wines with structure and depth. Lui's portfolio reflects a focused approach to two complementary varietals in one of South America's most respected wine regions.