Pierre Riffault produces Sauvignon Blancs and Pinot Noir rosé from Sancerre, the Upper Loire's limestone-rich terroir. The region's chalky soils—particularly the silex (flint) deposits—impart mineral precision to its white wines. L'Éclat Cuvée Silex Sancerre Blanc expresses this character with crystalline intensity, while Les 7 Hommes Sancerre Blanc offers a complementary expression of the appellation's signature varietal. The winery also makes Les 7 Hommes Sancerre Rosé from Pinot Noir, capturing the delicate fruit and structure the region's cool climate permits. Wine Enthusiast and Wine Spectator have rated these releases.