Château Bas produces wines from Provence's Coteaux d'Aix-en-Provence appellation, where Mediterranean sun and limestone soils shape the character of the region's reds and rosés. The winery's Coteaux d'Aix-en-Provence Rouge blends Shiraz, Grenache, and Cabernet Sauvignon—a combination that draws on the region's warm-climate potential while maintaining structure and depth. The rosé, built from the same varieties in different proportions, reflects Provence's mastery of the style, where careful winemaking preserves aromatic freshness and balance. Both wines have been assessed by Decanter, Wine Advocate, and Wine Spectator. The Rouge earned an average prestige rating of 90.0, while the Rosé averaged 89.3, placing both among the region's serious expressions of their respective categories.