2020 Cos d'Estournel, St Estèphe, Bordeaux

This is a very refined, polished Cos with superb finesse and length. Medium-to full-bodied, very fine and persistent. Really long with beautiful tannins. Rich, but fresh and linear. Yet, the alcohol is around 13.5%. 62% cabernet and 38% merlot.james_suckling, jamessuckling_com (April 2021)

The 2020 is a gorgeous wine from a very unusual year in which the Merlot is a bit more prominent in the blend than usual because of dehydration in the Cabernet. Even so, the 2020 is a wine of mid-weight finesse more than opulence. All the elements are impeccably balanced throughout.Drink from 2030 to 2050antonio_galloni, Vinous.com (June 2021)

The 2020 Cos d’Estournel is a very different proposition to the Les Pagodes, more so than in other years. Much more intense on the nose of intense black fruit, it is beautifully defined, with enticing scents of blackberry, Dorset plum and topnotes of blueberry and briar. After 30 minutes in the glass, it develops more Saint-Estèphe-like traits: freshly tilled soil, cigar box and touches of warm gravel. There is an openness to these inviting aromatics. The palate is medium-bodied with fine tannins (so different from the 'iron girders' of yore). There is freshness and a sense of light in this Cos d’Estournel, though the backbone remains in situ on the cedar and mint finish (a nod to neighboring Pauillac, perhaps), then a lingering marine/seaweed note on the aftertaste. This is a finely crafted, very succinct Cos d’Estournel that may well be hiding something up its sleeve for after bottling, and I suspect it will gain more spine during its barrel aging. Drink from 2025 to 2060Neil Martin, Vinous.com (May 2021)

The Grand Vin 2020 Château Cos D'Estournel is based on 62% Cabernet Sauvignon and 38% Merlot that was brought up in 55% new French oak. An inky-hued, concentrated, yet flawlessly balanced wine, it has gorgeous cassis and dark currant fruits, medium to full-bodied richness, ripe, building tannins, and just a wonderful sense of purity and elegance backed up by ample concentration. It stays tight, focused, and seamless, and is a brilliant example of the vintage. The 2020 hit 13.4% natural alcohol with a pH of 3.9 and an IPT of 80.jeb_dunnuck, jebdunnuck.com (May 2021)

Purple-black colour to the rim. Deep and dense (like an endless pool) but aromatically restrained. Some cassis with aeration. Big and bold with marked tension and supercharged but finely hewn tannins. Enough fruit to provide unctuosity. Fresh, dry and saline through to the finish. Powerful but sculpted. Very long ageing.Drink 2030 - 2055james_lawther MW, JancisRobinson.com (April 2021)

The 2020 Cos d'Estournel is composed of 62% Cabernet Sauvignon and 38% Merlot. The harvest took place September 10–24 with a yield of 39 hectoliters per hectare. The alcohol weighs in at 13.46% with a pH of 3.9 and an IPT (total phenolic index) of 80. It is being aged in French oak barrels, 55% new. Drink from 2028 to 2060Lisa Perrotti-Brown MW, Wine Advocate (May 2021)

Subtle black fruit, and a lovely, insistent gravel impression, already a nose that really tempts one to linger; rich, medium-full, beautifully, imperceptibly defined by its acidity and with superfine, velvety tannin; here is a mouthcoating, sweetly ripe Cabernet core, but a ripeness absolutely without excess, and remaining so fresh; subtle, flattering, prolonged, quietly aristocratic, the very essence of grand vin, and with terrific persistence. Great Cos, providing the sort of sensory satisfaction and appeal you get in a rich, detailed, sustained mezzoforte chord from a prime orchestra. A most complete and refined claret of first-growth quality. There is such polish in all the Cos wines—a great tribute to the team, led by Dominique Arangoits.Drink 2030 - 2060Michael Schuster, The World of Fine Wine (May 2021)

You need to take a little time to let the concentrated flavours seep out, this is a long hauler. The tannins build slowly but surely through the palate, sombre and serious right now, particularly for an estate that is known for its exuberance. The opulence is there if you give it time, and as the tannins elongate and relax, richer notes of bilberry fruits, toasted cedar, salted chocolate, turmeric and black pepper spice arrives. Harvest September 10 to 24. A 3.9pH is the highest since 2003, but any threat of low acidity is balanced by high tannins, and relatively low alcohol. A yield of 39hl/ha (43hl/ha in 2019).Drink from 2027 to 2044jane_anson_mw, Decanter (April 2021)