Andeluna operates in Tupungato, the high-altitude heart of Mendoza's Uco Valley, where Malbec thrives in cool mountain conditions. The winery's Pasionado Reserva Malbec—rated 91.0 by prestige critics including Wine Spectator, Wine Enthusiast, Decanter, and Wine Advocate—demonstrates the region's capacity for structured, age-worthy reds. The Pasionado Cuatro Cepas, a Malbec-led blend with Cabernet Franc, Cabernet Sauvignon, and Merlot (90.8), shows the complexity possible when multiple Bordeaux varieties meet Andean terroir. A varietal Cabernet Franc (90.5) rounds the portfolio, offering the aromatic intensity and mineral tension characteristic of the grape at elevation. Tupungato's altitude and diurnal temperature swings concentrate flavor while preserving acidity—conditions that shape wines of definition rather than extraction.