2019 Dunn Vineyards, Cabernet Sauvignon, Napa Valley, California, USA

Dunn Vineyard

Randy Dunn established his reputation as a top class Cabernet Sauvignon producer as winemaker at the renowned Caymus estate in the 1970s and early 1980s. Since 1979 he has been producing a mere 5000 cases a year from his Howell Mountain winery.

His vineyards lie on red-stony soil which is mixed occasionally with volcanic ash. They are situated high up on Howell Mountain, above the famous Napa Valley fog - growing conditions are cooler and windier, although night- time temperatures are warmer and the grapes often ripen ahead of those on the valley floor.

The wines are matured in French oak barrels (40% new) for 30 months. They are huge, dense, massively structured Cabernet Sauvignons that demand extended bottle ageing. The patient are rewarded with some of the most concentrated, rich and cassis-laden wines that rival the very best Californian Cabernets for longevity and sheer quality.

Napa Valley

North Coast's Napa Valley is California's most famous viticultural area (AVA), claiming some of the most expensive agricultural land in the world and producing wines of ‘cult’ status.

Its 16,000 ha of vines lie over a strip (40 miles long-5 miles wide) of diverse soils (clay, gravely, volcanic), with its northernmost end on the side of Mountain Helena and its foot in San Francisco Bay. The valley is framed by two mountains ranges Vaca (to the north) and Mayacamas (to the south), yet the main climatic influence is the cool wind and fog that is sucked in from San Pablo Bay during the afternoon, allowing grapes to ripen slowly and evenly. 

The area enjoys a variety of unique microclimates, as temperatures can vary dramatically as much as 15 degrees, from the north to the south end of the valley. These differences have led to the creation of several sub-AVAs (14 in total) including:

Atlas Peak, Chiles Valley District, Diamond Mountain District, Howell Mountain, Los Carneros, Mt. Veeder, Oakville, Rutherford, St. Helena, Spring Mountain District, Stags Leap District, Yountville, Wild Horse Valley and Oak Knoll District. The Calistoga AVA is still pending approval.

Both the “Napa Valley” designation and the sub-AVA name must appear on the wine label simultaneously, with the exception of wines from the Carneros AVA, which is shared between the Napa Valley and the Sonoma County.

Cabernet Sauvignon is the undisputed king of Napa grapes, occupying over 45% of the vineyard acreage, followed by (predominantly) Chardonnay, Sauvignon Blanc, Chenin Blanc, Riesling, Zinfandel, Merlot, Cab. Franc and to a lesser extent Petite Sirah, Sangiovese, Barbera, Dolcetto.

Recommended Producers
Frog's Leap, Dominus, David Ramey, Viader, Stag's Leap Cellars, Paras Vineyards, Heitz.

Cabernet Sauvignon

The most famous red wine grape in the world and one of the most widely planted.

It is adaptable to a wide range of soils, although it performs particularly well on well-drained, low-fertile soils. It has small, dusty, black-blue berries with thick skins that produce deeply coloured, full-bodied wines with notable tannins. Its spiritual home is the Médoc and Graves regions of Bordeaux where it thrives on the well-drained gravel-rich soils producing tannic wines with piercing blackcurrant fruits that develop complex cedarwood and cigar box nuances when fully mature.

The grape is widely planted in California where Cabernet Sauvignon based wines are distinguished by their rich mixture of cassis, mint, eucalyptus and vanilla oak. It is planted across Australia and with particular success in Coonawarra where it is suited to the famed Terra Rossa soil. In Italy barrique aged Cabernet Sauvignon is a key component in Super Tuscans such as Tignanello and Sassicaia, either on its own or as part of a blend with Sangiovese.