The 2009 Vieux Chateau Mazerat Bordeaux Blend is a red wine from the Bordeaux region of France, specifically from the sub-region of Saint Emilion. This wine, produced by Vieux Chateau Mazerat, is a blend of 65% Merlot and 35% Cabernet Franc from vines planted in 1947, growing in clay over limestone soil. The wine is closed with a cork and has an alcohol content of 14.5%.

Robert Parker's Wine Advocate awarded this wine an impressive score of 97, with Robert M. Parker, Jr. describing it as having "loads of chalky minerality and a stunning nose of espresso, blackberry, mulberry, and kirsch." He also noted its elegance, superb definition, and rich, full-bodied mouthfeel, stating that the wine has gained considerable weight since being tasted from the barrel. However, Parker cautions that the production is limited to under 1500 cases. He recommends its maturity period from 2016 to 2032.

Wine Spectator gave the 2009 Vieux Chateau Mazerat a score of 91, highlighting its "broad-shouldered style" and noting the presence of "dark charcoal and ganache notes fronting for the core flavors of roasted fig, plum sauce, and warm black currant confiture." The review further comments on the wine's richness and smokiness through the finish, with the ganache edge lingering. The best consumption period is suggested to be from 2014 to 2026.

Wine Enthusiast provided a score of 94, describing the wine as one that "shows structure, richness, and warmth." The review mentions ripe black fruits paired with generous tannins, concentrated texture, and acidity. It also notes that the wine is "melding into a floral, spicy, opulent whole."

In summary, the 2009 Vieux Chateau Mazerat is a well-regarded Bordeaux Blend from Saint Emilion, praised for its rich flavors, structure, and potential for aging. With notable scores from top wine reviewers, this wine stands out as a limited production gem worth considering for collectors and enthusiasts alike.