Jelu was established to promote Argentina’s terroirs, Duncan sources organically grown grapes from a few regions, including the Zonda Valley in San Juan and Patagonia. The Zonda Valley is dry and hot with riverbed shingles and pudding stones that run two meters deep and radiate heat throughout the valley. This soil composition is quite extreme already, but the terroir is also transformed by temperature variations spanning 50 degrees over the course of a day in the height of summer. The grapes that are harvested in January (the southern hemisphere’s equivalent of July) which is relatively early compared to other producers in the region. Duncan does this to ensure that the wines ferment completely dry with balanced levels of acidity and alcohol. The high-elevation glacial valley produces distinctive wines that are bright, lively and truly expressive of both Duncan’s passion and the San Juan region itself.