Wow. This is so classy and long, with balanced and intense tannins that give it a seamless and almost endless nature. It's dense, with a medium body and intensity that gives it so much verve. A superb wine for the vintage. It’s reminiscent of old, great Cos bottlings, but with more form and modernity. A renaissance of Cos. 65% cabernet sauvignon, 33% merlot, 1% cabernet franc and 1% petit verdot. Best after 2029. James Suckling Senior Editor

(JL 96-98 points) It takes some coaxing to find the red, purple, and white floral bouquet, but it comes with swirling, along with Asian spice, smoke, tobacco, and licorice. But, it is the palate that offers thrills with its silky, fresh, opulent textures. There is a vivid quality to the fruit, coupled with a relaxed character, finishing with black, red, and blue fruits complicated by Indian spices. It reminds me of a modern version of the 1990, with selection. The wine was made from blending 65% Cabernet Sauvignon, 33% Merlot, 1% Petit Verdot, and 1% Cabernet Franc. 13% ABV, 3.75 pH. The harvest took place September 12 to September 29. This is the first vintage, since 2008 the estate green harvested. The Grand Vin was produced from 53% of the harvest. The wine is going to be approachable early in its life, yet it has the ability to age for decades. Drink from 2029-2060.

Step into Cos d'Estournel, with its richness, depths and layers of cocoa bean, liquorice, espresso, chocolate, exceptional chewiness on the tannins, making things fairly serious at this early stage, with a promise of slow-revealed pleasure over the decades ahead. First time doing green harvest in the vineyards since 2008, causing some worries over the late heat waves on already ripening grapes, but they have retained balanced alchols here, and there is plenty of juice to lift things up on the finish. Harvest September 12 to 29 (last year finished September 22). 50% new oak for ageing, 53% 1st wine. In organic conversion (that began in 2021, but have had to extend after addition of a few more plots to the vineyard).

(JD 95-97 points) The Grand Vin 2023 Château Cos D'Estournel checks in as 65% Cabernet Sauvignon, 33% Merlot, and a splash of Cabernet Franc and Petit Verdot, resting in 50% new French oak. This beauty brings everything up a notch, with awesome crème de cassis, graphite, violets, spicy oak, and chocolate-driven aromatics. Rich, full-bodied, and beautifully textured, it has the fresher yet ripe style of the vintage, beautiful tannins, integrated acidity, and a great finish. It's a beautifully elegant yet powerful wine in the making from this team.

(TWI 95-97+ points) The 2023 Cos d'Estournel is deep garnet-purple in color. Energetic notes of cassis, wild blueberries, and fresh juicy raspberries pop from the glass, giving way to underlying hints of rose oil, black pepper, and anise. The light to medium-bodied palate is taut with tightly wound, shiny black and red berry layers, framed by firm grainy tannins and bold freshness, finishing long and minerally. The blend is 65% Cabernet Sauvignon, 33% Merlot, 1% Cabernet Franc, and 1% Petit Verdot, with pH 3.75 and TPI 72. - Lisa Perrotti-Brown

Some herbal touches on the nose with dark chocolate, a little exotic with quite dark ripe blackcurrants. Expressive and alive in the glass, weighty and smooth, a great texture and structure to this, more fleshy and ripe than I was expecting with a mineral undercurrent. Lots going on here, less showy as the fruit subsides and leaves some grippy, powdery tannins that linger. Still serious and needs time to come together, a little quiet and intense on the finish. Not so much overt acidity, more power and structure at this point. First time green harvesting since 2008. 12% press wine, less than in 2022. Shorter maceration in 2023, 23 days compared to 28-30 at cooler temperatures. Ageing 50% new oak. In organic conversion. 53% grand vin, 47% second wine. 1% Petit Verdot completes the blend.

(WA 95-96 points) A contemporary classic in the making, the 2023 Cos d'Estournel has turned out beautifully, reflecting a lighter touch with extraction that has delivered more sensuality and harmony without the loss of any of the estate's signature power and authority. Wafting from the glass with deep aromas of cassis, wild berries, orange zest and exotic spices, framed by well-integrated new wood, it's medium to full-bodied, deep and layered, with a concentrated core of fruit, beautifully suave tannins and a cool, seamless profile. It's a blend of 65% Cabernet Sauvignon, 33% Merlot and the balance Cabernet Franc and Petit Verdot that attained 12.9% alcohol and is being matured in 50% new oak. - William Kelley

The 2023 Cos d'Estournel, which was bottled in July 2025, was tasted on two visits, showing much better the second in December. It has an intense nose with predominantly black fruit, violet and fresh mint emerging with time that gives it a Pauillac-like character. Very well defined as usual, quite sophisticated. The palate is medium-bodied with fine-grain tannins, very well balanced with gentle but insistent grip. What I like here is the underlying sapidity that comes through toward the finish, while the sample tasted at the château demonstrated a little more creaminess to the texture. Great length, very composed, delicious and classy Cos d'Estournel. -By Neal Martin on February 2026