Before we get into the qualities that made me like the quite beautiful Cade Sauvignon Blanc 2013, Napa Valley — well, that sort of gives it away, doesn’t it? — let’s look at the interesting technical data, because for a wine that radiates purity and intensity of varietal purpose, it took considerable thought to make it that way. Cade Estate Winery was founded on Howell Mountain in 2005 by partners Gavin Newsom, Gordon Getty — names with which to conjure, fiduciary-wise — and general manager John Conover. The most visible of the trio is Newsom, who was elected mayor of San Francisco in 2003 and 2007 and lieutenant governor of California in 2010 and whose business successes make me think that I just got off to the wrong start in life. First came the PlumpJack wine store in 1992, followed by PlumbJack Winery in Napa Valley and then a host of cafes, restaurants, resorts and retail outlets. Sheesh. And the guy is good-looking too.

Let’s turn, however, to Cade winemaker Danielle Cyrot, whose work I much admired when she was at St. Clement, and the regimen for this sauvignon blanc. In terms of grape origin, 39 percent of the grapes for this wine derived from Cade’s vineyard in Oakville; the rest came from growers in Oak Knoll, St. Helena, Calistoga and the Napa Valley AVA. Fermentation occurred in a combination of stainless steel tanks (71 percent), stainless steel drums (11 percent), French oak barrels (61. percent new and 11.8 percent used) and the remaining .1 percent in concrete eggs. That is, I will say, the most complicated fermentation process I have ever heard of. Oh, wait, of the portion that fermented in barrels, 80 percent of that was inoculated with yeast and 20 percent fermented on naturally-occurring yeasts. No malolactic (or secondary) fermentation occurred, leaving the wine with crisp acidity. The wine aged in tanks and barrels for five months. There’s a bit of a blend: 2.5 percent each semillon and viognier.

Did it actually require that much calibration to creative this wholly attractive sauvignon blanc? Whatever the case, this is a damned fine wine. The color is pale gold that almost shimmers in the glass; fresh, enticing yet spare aromas of lemongrass and lime peel, pert gooseberry and earthy celery seed, peaches, tangerines and notes of lilac and lemon balm characterize the bouquet. In the mouth, this sauvignon blanc elegantly balances vibrant, finely honed acidity with cloud-like lushness and a scintillating crystalline limestone element, all supporting citrus flavors etched with a slight sunny, leafy, herbal quality. 14.5 percent alcohol. We drank the Cade Sauvignon Blanc 2013 one night with chicken breasts first seared and then poached in white wine and the next night with a roasted tuna Nicoise. Now through 2015. Excellent. About $28, the upper limit of what I would recommend in these Wine of the Week posts.

A sample for review. The label image on the winery website has not caught up with the change to the 2013 vintage of this wine.