The Grand Vin 2018 Château Potensac (45% Merlot, 36% Cabernet Sauvignon, 18% Cabernet Franc, and the balance Petit Verdot) sports a deeper purple, almost opaque hue to go with lots of ripe black cherry and currant-like fruits intermixed with notes of toasty oak, tobacco, graphite, and earth. Richer and more concentrated than the Chapelle de Potensac release, with full-bodied richness and building tannins, it's going to benefit from a solid 5-7 years of bottle age and keep for 15+.
Score: 93 points -- Jeb Dunnock, jebdunnock.com, 2021