Elevation-driven and acid-cut — citrus, stone fruit, and a mineral line that doesn't quit.
We chose our Moon Mountain Estate for its ability to produce world-class white wine. Old-vine Sauvignon Blanc growing on steep mountain terrain is exceedingly rare — white wine grapes are seldom planted on the challenging, labor-intensive hillsides typically reserved for high-value red varieties. That this block exists, and that it thrives, tells you something about Moon Mountain's singular character. Its volcanic and clay soils, dual coastal influences, and 1,800-foot elevation deliver intensity without weight and a mineral line of natural acidity that defines our Moon Mountain District Sauvignon Blanc.
The same team behind our reds oversees every step of our white winemaking with equal skill, focus, and attention to detail. Theorem's Sauvignon Blanc is aged in three unique vessels: stainless steel drums (to lock in the crisp, acid-driven style that is the backbone of the wine), neutral French oak (to add fleshiness and weight to the final blend), and a custom concrete egg (to preserve minerality while building a beautiful creaminess, weight, and complexity mid-palate). All of this combines to create a truly stunning Moon Mountain District Sauvignon Blanc fit for the finest cellars.
Citrus. White Peach. Wet Stone.
In the glass: aromatics of white peach, Meyer lemon, orange blossom, and a hint of lychee open to lime zest, kiwi, and crushed rock. On the palate: bright orchard fruit wrapped in a subtle, lees-driven creaminess from the egg, framed by mouthwatering acidity and a clean, lingering finish. Stunning now; at its best over the next 3–5 years as the mineral core fans out.
“It’s our all-the-time wine—crisp, crowd-pleasing, and perfect with pretty much everything.” —Kisha Itkin, Founder
“The concrete egg is our hallmark—early picks go in for that racy spine; we blend super cold to lock in freshness.”
— Andy Jones, Winemaker
Tasting Notes
Moon Mountain Sauvignon Blanc
Theorem's Moon Mountain District Sauvignon Blanc is estate-grown in the Moon Mountain District AVA above Napa and Sonoma valleys — a high-elevation mountain appellation defined by volcanic and clay soils, dual coastal winds, and a growing reputation for world-class white wine.
Above the fog; dual coastal winds for natural acidity.
Multi-Pass Picks
Flagged rows harvested in small windows for ideal ripeness.
Estate-Grown & Fermented by Lot
Kept separate, then blended for balance and clarity.
Three-Vessel Aging
Equal parts stainless, French oak, and concrete egg.
An aerial view of Theorem Vineyards' hillside estate, with intimate shots of a hummingbird among lavender, blooming flowers, and vines, followed by wine being poured and aging in oak barrels.
