Petrus pomerol 1974 consistently well-preservedFor Pétrus 1974, Merlot is the primary—and historically dominant—grape variety. Merlot: approximately 95% Cabernet Franc: approximately 5% Cabernet Sauvignon plays virtually no role at Pétrus. Consequently, Pétrus stands as a remarkable example of a highly prestigious Merlot-based Bordeaux, whereas many famous Bordeaux wines from the Médoc rely heavily on Cabernet Sauvignon. After 52 years, a bottle from the 1974 vintage has naturally undergone significant evolution: the initial fruitiness of the Merlot has given way to more tertiary aromas, such as dried fruit, truffle, forest floor, and leather.