Napa Valley’s Somerston Wine Co. encompasses three labels: Somerston, Priest Ranch and Highflyer. Today we look at the Priest Ranch PR-LogoFinal-EstateGrenache Blanc 2013, from a grape not commonly found in Napa Valley. The wine was fermented by native yeasts — that is, yeasts naturally occurring on the grapes, rather than inoculated in the winery — in stainless steel drums and tanks, with aging carried out in stainless steel with 10 percent neutral French oak barrels. No toasty new oak for this baby! The color is what I think characteristic for grenache blanc, a pale gold hue with a sheen of shadowy tarnish. The bouquet is a subtle melange of lemon and melon, greengage and white pepper, dried thyme, lavender and cedar. The wine is spare and elegant and nicely balanced with juicy roasted lemon flavors highlighted by notes of peach and spiced pear; for all its delicate felicity, though, it pulls up a slightly dusty, faintly tannic element that lends a mysterious earthy effect and leads to a finish lithe with an austere saline and savory quality. 14.3 percent alcohol. Production was 1,151 cases. This should drink well through 2016 with light fish and seafood dishes. Winemaker was Craig Becker. Excellent. About $22.

A sample for review.