Which grape is commonly used as a foundation in Argentina's premium sparkling wines due to high fruit concentration?

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Pinot Noir is chosen as the base for Argentina's premium sparkling wines because it delivers high fruit concentration, giving the base wine a rich, expressive red-fruit character and enough body to carry through the sparkling process. This concentration helps create depth and complexity in the final wine, especially when balanced with Chardonnay, which provides bright acidity and finesse. Other grapes either don’t offer the same level of concentrated fruit (Sauvignon Blanc tends to be aromatic and leaner in fruit density) or bring heavier color and tannin (Malbec) that can overwhelm the delicate fruit character. Chardonnay alone also lacks the extra depth Pinot Noir contributes, so Pinot Noir stands out as the foundation for high-end Argentine sparklers.