2 low sulfite spots in Ribera del Duero, editor-picked by Cork & Curve. All dietary guides in Ribera del Duero.
Goyo Garcia Viadero (Zero Added Sulfite) ★ 4.7
Valladolid sub-zone · Ribera del Duero, Valladolid province
Goyo Garcia Viadero is documented by importers and the Vine Trail (UK) as producing wines with zero added sulfites ('sin azufre anadido') across all bottlings. No SO2 is added at any stage - including during elevage or bottling. Wines rely on phenolic structure, low pH, and minimal oxygen contact during transfer for stability. This is one of the most rigorous low-sulfite regimes in Ribera del Duero, and has been confirmed by multiple independent importer statements.
Finca Torremilanos (Low-Sulfite Natural Range) ★ 4.4
Aranda de Duero · Finca Torremilanos, 09400 Aranda de Duero, Burgos
Finca Torremilanos's natural wine range, debuted at the 2026 Salon Gourmets and produced alongside the Demeter-certified biodynamic portfolio, is made with minimal or no added sulfites, consistent with its natural wine certification status. The estate's Demeter biodynamic certification restricts synthetic inputs throughout viticulture; the natural wine extension applies this logic to the cellar. The specific sulfite addition levels for the natural range are documented in the producer's Gourmets catalogue entry and the estate website.