Elaine’s review last week of Cabernets with the general Napa Valley appellation stirred up some strong reactions, including on our members’ forum. She addresses some of the issues raised by the first of her two articles on Napa Cabernets in this introduction to the second one, a report on a total of 90 Cabernets with one of the many Napa Valley sub-appellations described below. A report on Napa Merlots will follow. Elaine’s picture was taken on Howell Mountain.
The over-arching region and AVA of Napa Valley includes 16 sub-appellations ranging in their combination of growing conditions – elevation, soil types, drainage, mesoclimate – to create unique subzones that offer their own stylistic range and expression.
Producers within Napa Valley can chose to label their wines with the Napa Valley appellation as long as 85% or more of the fruit going into their wine is from the region. Labelling requirements for the sub-AVAs of Napa Valley are similar. For a wine to be labelled with one of the 16 sub-appellations the wine must be made predominantly from fruit grown in that subzone. Additionally, any of the sub-AVAs fully within Napa County must include reference to Napa on the label. For example, a wine from the Rutherford AVA has to be labelled with both Rutherford and Napa Valley. The two exceptions are Carneros, which stretches across both Napa and Sonoma Counties, and Wild Horse Valley, which includes land in Solano as well as Napa County. (See the online World Atlas of Wine map of Napa Valleyfor many of the sub-AVAs.)
Many of the most delicious wines of the region come from producers focused intently on specific subzones who label their wine with their relevant sub-appellation. In many cases, the growing conditions of a specific sub-AVA are expressed in the bottle.
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