Viña Undurraga, founded in 1885 and one of Chile's historic wine families, produces this Cabernet Sauvignon from their holdings in the Maule Valley, a region renowned for full-bodied, structured reds. The Aliwen Gran Reserva series represents the producer's premium tier, drawing from carefully selected parcels at optimal elevation and aspect. Maule's Mediterranean climate—warm, dry days and cool Pacific-influenced nights—provides the diurnal temperature variation that concentrates flavour whilst maintaining acidity in Cabernet. The 2023 vintage benefited from summer warmth and balanced rainfall, yielding ripe, phenolically mature fruit ideal for cellaring. Undurraga's viticultural practices emphasise sustainable viticulture, balancing canopy management with natural pest management.

Cabernet grapes were hand-harvested at full ripeness and destemmed, then fermented in temperature-controlled stainless-steel tanks with selected yeasts to ensure consistent, clean fermentation. Extended maceration (typically two to three weeks) extracted colour, tannin structure, and aromatics. The wine then aged in a blend of new and used French oak barrels (likely 80% new or significant new-oak component, typical for Gran Reserva tier) for 12–14 months, imparting vanilla, spice, and complexity. Malolactic fermentation occurred in barrel, softening acidity and adding textural weight. Bottling followed, with the wine entering further evolution in-bottle.