How do the Smith brothers do it? Normally, I would find a chardonnay that was 100 percent barrel-fermented and aged in 100 percent new French oak barrels (for eight months) undrinkable because of the influence of wood, but Charles and Stuart Smith, who produce only limited bottlings of chardonnay, cabernet sauvignon and riesling, smith madrone chardonnaymanage, once again, to deliver a chardonnay notable for its bright, clean brilliance; its chiseled restraint that still allows for the grape’s natural richness; its lithe, supple juiciness. Perhaps this result has to do with the age of the mountain-side vineyard, where the vines were 41 years old for this vintage, or with the fact that the vineyard is dry-farmed, seeing no irrigation during periods of little rain, so the roots have to struggle to find nutrients and moisture, a sort of vinous variation on the “no pain-no gain” principle. In any case, the Smith-Madrone Chardonnay 2013, Spring Mountain District, Napa Valley, is a beauty. The color is pale straw-gold with a faint green tinge; classic aromas of ripe pineapple and grapefruit carry a thread of mango and cloves, with high notes of jasmine, talc and limestone. The intimation of limestone, and its aide-de-camp, flint, in the nose expands righteously on the palate, and combined with chiming acidity produces a chardonnay of crystalline clarity that feels lit from within. Despite the oak regimen, any wood activity lies in subtly shaping and sculpting the wine, a significance as gentle but urgent as a Summer zephyr. Flavors are more stone-fruit — peach, yellow plum — than citrus, and all elements devolve to a long, limpid and luminous finish. 14.1 percent alcohol. An essential chardonnay, exquisite in its parts, elegant in balance, dynamic in total. Production was 806 cases. Drink now through 2018 to 2020. Exceptional. About $32.

A sample for review.