Sancerre is a famous white Sauvignon Blanc appellation located on the left bank of the Loire. Its 14 communes are widely dispersed, covering nearly 3,000 hectares over vertiginous valleys at up to 350 metres above sea level, and three distinct soil types. As with nearby Pouilly-Fumé, an increasing number of single-vineyard wines are being raised in French oak, mostly 500-litre and demi-muids.
While Pouilly-Fumé's vineyards are tightly clustered and homogeneous, Sancerre's 14 communes (including the great villages of Chavignol, Bué, Verdigny, Amigny and Ménétréol) are widely dispersed, covering nearly 3,000 hectares over vertiginous valleys at up to 350 metres above sea level, and three distinct soil types: silex, a white flint found around Sancerre and Ménétréol in particular, giving perfume and a fine structure; terres blanches, a calcareous clay soil that whitens as it dries (widely distributed), delivering a full, fruity richness; and caillottes, a Portlandian soil brimming with large limestones imparting both power and verve – as found in Sancerre, Chavignol and Bué.
A fourth soil type, griottes, tightly-packed with small limestones, has also been identified – as found near the village of Vosges. Kimmeridgean clay crops up less consistently than in Pouilly-Fumé and since most Sancerre, bar the single-vineyard wines, are a blend of soils the result is a richer, fuller and fleshier Sauvignon Blanc.
As with Pouilly-Fumé, an increasing number of (single-vineyard) wines are being raised in French oak, mostly 500-litre and demi-muids; little surprise in light of naturally higher alcohol levels due to global warming. Sancerre Rouge is also made from Pinot Noir, the quality of which is often compromised by bleeding some of the juice to make rosé – Vincent Pinard is a master nonetheless.