98 James Suckling - Jamessuckling.com

Sliced-apple and lime with some aniseed and licorice. Iodine, too. Full-bodied with linear acidity and a fine tannin structure that goes on for minutes. 65% sauvignon blanc and 35% semillon. This is fantastic and so delicious now, but can age for a very long time. Drink or hold.

97 Decanter

One of the best Cos Blancs for years, this is a real return to form, a great white wine that has presence and impact. Fantastic balance of rich, textured stone fruit with a fresh finish. You'll find salinity, slate texture, jasmine flowers and white pepper spice. It was a warmer year overall than 2017, and the white vines needed rain, which they got eventually but relatively late, meaning half the harvest was done on before the rain, and the other half after some freshening rainfall, which perhaps accounts for this unusual but rather beautiful marrying of the two styles. Concentrated, powerful, balanced and complex. Love it.

94-96 Jeb Dunnuck - jebdunnuck.com

The flagship, the 2019 Château Cos D'Estournel Blanc is a racier white offering lots of beautiful citrus, white flowers, and a salty, mineral-like quality. With beautiful concentration and terrific balance as well as great acidity, it's another fabulous white from this team, if not surpassing the 2018.