Petit et Bajan produces champagne in France's Champagne region, where chalky soils and cool continental climate shape wines of precision and minerality. The house works with Pinot Noir and Chardonnay, the region's foundational varieties, crafting cuvées that balance richness with acidity. Ambrosie Grand Cru Brut, a blend of Pinot Noir and Chardonnay, and Nuit Blanche Grand Cru Brut, a pure Chardonnay expression, represent the winery's portfolio. Both have been assessed by Wine Spectator, Wine Enthusiast, and Decanter.