A lesson in genuinely great wine, the 2005 Cos d’Estournel is a monster of a wine that delivers an incredible level of opulence and decadence while staying weightless and elegant on the palate, with no sensation of heaviness. This is what truly great wine is all about. Based on 78% Cabernet Sauvignon, 18% Merlot, and the final 4% Cabernet Franc, this dense ruby/plum-hued Saint-Estèphe offers up a monster bouquet of blackcurrants, unsmoked tobacco, licorice, toasted bread, classy oak, and cedar pencil. While it starts out reserved and almost understated, this is a wine that blossoms with air (I drank this bottle over two days, showing best on day two). Full-bodied, powerful, and decadent on the palate, with moderate acidity, it has a wealth of silky tannins, a stacked mid-palate, and a great, great finish. It reminds me of the 2009, if not an improved 1982, or even a slightly fresher 2003. Regardless, it’s a thrilling wine in every sense, and I fear with the focus on acidity and freshness in today’s wine world, we might not see this style of great wine for some time.Jeb Dunnuck | 99 JDThe purity of fruit in this is fascinating with plums, currants and other dark fruits. Then there is another layer of spices and chocolate. So much cassis. Full and very layered with chewy polished tannins and a long, long finish. Just starting to open. Changes all the time.James Suckling | 99 JSWhile I am not convinced the 2005 Cos d’Estournel will eclipse the compelling 2003 Cos, it is unquestionably another superb classic from proprietor Michel Reybier and his brilliant winemaker, Jean-Guillaume Prats. Made from an unusually high percentage of Cabernet Sauvignon (78%) and the balance mostly Merlot with a tiny dollop of Cabernet Franc, this superb effort requires plenty of time in the bottle. It boasts an inky/purple color as well as a glorious perfume of licorice, Asian spices, creme de cassis, blackberries, and toasty oak. This full-bodied St.-Estephe is exceptionally powerful, pure, and dense with a layered mid-palate that builds like a skyscraper. While there are massive tannins, they are remarkably velvety and well-integrated in this big, backstrapping effort that should enjoy an unusually long life. Forget it for 8-10 years, and drink it between 2017-2040.Robert Parker | 98 RPThe 2005 Cos d’Estournel is a vintage that I have encountered several times over the years. Here, as part of a 2005 horizontal of the top Bordeaux, it mirrors previous bottles. It has a tightly-wound bouquet at first with blackberry, scorched earth, juniper and hints of leather. More backward that its peers and clearly requiring another three to five years or an extremely long decant. The palate is robust, masculine, dense and yet comes with fine tannins and plenty of energy. It has a precision that derives from its propitious terroir and yet there is no question that it needs 15, perhaps 20 years before it will reach its drinking plateau. Tasted at the Goedhuis’s 2005 Bordeaux pre-dinner tasting at the Savoy in London.Antonio Galloni | 97 AGSaint-Estèphe has a reputation for tannins, and this 2005 Cos lives up to that. But it does much more, because the tannins add richness along with intensely ripe black fruits, dark plums and figs. The dense tannins are finely balanced with fresh acidity, and a long-lasting aftertaste. Impressive.Wine Enthusiast | 97 WEStill tight despite a gorgeous wave of rich melted licorice, fig bread, warm plum compote and steeped blackberry flavors. Lovely alder, black tea and balsam wood details give this added range and a sense of detail through the finish before a wall of graphite-edged grip shows up. We’re still in wait mode here.—Blind ’01/’03/’05 Bordeaux retrospective (December 2017). Best from 2020 through 2040. 25,000 cases made.Wine Spectator | 96 WSThis inky, dark wine is seductive and immediately approachable, with a nose of sweet black fruit touched with honey and a bit of earth. The texture is silky and dense but not lacking in substance or structure. The blend of 78% Cabernet Sauvignon and 19% Merlot with a bit of Cabernet Franc was one of the leading lights in the appellation in 2005, as is often the case. Drinking now, it should continue to improve for decades. (Drink between 2021-2040)Decanter | 95 DECJean-Guillaume Prats allowed the vintage to steer Cos toward unprecedented power in 2005; the wine comes in at 13.95 percent alcohol, and it’s grand in every sense. It smells like first-growth juice, with the kind of oak integration that accentuates the wine’s beauty rather than masks it. You can feel the tart black cherry fruit and the black tannin along with a burn in the end that is distinct to this vintage. With several days of air, the tumble and rush of the structure settles and the fruit becomes all-powerful, a taut density of sweet purple plum. There’s little doubt this will be an astonishing wine at 12 to 15 years of age; its ripeness leads into uncharted territory after that, which makes Cos one of the more interesting wines of the vintage to watch. Diageo Château & Estate Wines, NYWine & Spirits | 95 W&S