Quintessa is made from 91% Cabernet Sauvignon, 4% Cabernet Franc, 3% Carménère, 1% Merlot, 1% Petit Verdot.
The 2021 unfolds with Quintessa's signature balance of complex fruit, precise structure, and vital freshness amplified by an especially beautiful growing season. Floral notes— violet and lilac—lift an intensely aromatic bouquet of cassis and black cherry accented with anise, bay laurel, and forest floor. On the palate, firm but fine-grained tannins back dark berry and savory herb flavors interwoven with graphite and iron. Generous texture carries the complex layers to a fine, chalky finish.
Review:
 An exquisite wine, relying primarily on Cabernet Sauvignon from a single estate. Aromas of lavender, dried herbs and grapefruit pith combine with flavors of firm fruits and cocoa on a structure of abundant, powder-fine tannin and a mouthwatering finish. This wine is refined, detailed and delicious, with as much elegance as energy. Best 2026–2040.
Cellar Selection 
-Wine Enthusiast 100 Points
 Holocene The Black Square Cabernet Sauvignon is made from 100 percent Cabernet Sauvignon. 
There is something ethereal about Cabernet Sauvignon grown in the cobblestone soils of the Walla Walla Valley. This region offers aromatic exuberance, elegance, finesse, a polished texture, layered complexity, and remarkable length. It is a place where one can craft a singular, stand-alone example of this varietal—unique not only in the United States but worldwide—while still echoing some of our favorite wines from Bordeaux.
In 2022, Winemaker Todd Alexander embarked on a new (yet familiar) journey that he had been patiently awaiting the perfect moment to explore. The Black Square is in its inaugural vintage, and this 2022 is 100% Cabernet Sauvignon grown in the Rocks District of Milton-Freewater, Oregon, which is part of the Walla Walla Valley.
The Black Square embodies elegance and grace framed by great structure, supple texture, and acidity to ensure longevity. It shows ample fruit with complex savory notes. This is not a heavy wine that is monolithic and dull—there are already plenty of those available. This wine offers a unique expression of Cabernet; it may be the most delicious wine Todd Alexander has ever crafted, venturing into new territory for Rocks District Cabernet Sauvignon.
Review:
As black as squid ink, The Black Square is balance personified. A concentrated blackberry aroma seems as dark as the wine's name, with equally dark espresso, olive and charred steak notes joining it in the abyss. A dark plum and ripe boysenberry flavor combo is accompanied by traces of salty Mission olives, wet slate and silky smooth tannins. The one bright feature illuminating the way is the wine's amped-up acidity. None so black
-Wine Enthusiast 98 Points Number 5 in the Top 100