About Theorem Vineyards
60 acres at 1,100 feet on Diamond Mountain's north slope, where volcanic soil and cooling winds shape single-vineyard, single-varietal wines. The Itkins bought the property in 2012 and winemaker Andy Jones picks by taste, keeps lots separate, and bottles only what's worthy.
Tasting Experiences
Customized Tastings
High-end, customized wine tasting experiences with panoramic views of Mount St. Helena and Diamond Mountain
Estate Visits
Visits to the Diamond Mountain and Moon Mountain vineyard estates featuring volcanic soils and mountain terroir
Varietals
Cabernet SauvignonMerlotSyrahChardonnaySauvignon BlancSparkling
When to visit Theorem Vineyards
Monday10:00 AM - 4:00 PM
Tuesday10:00 AM - 4:00 PM
Wednesday10:00 AM - 4:00 PM
Thursday10:00 AM - 4:00 PM
Friday10:00 AM - 4:00 PM
Saturday10:00 AM - 4:00 PM
Sunday10:00 AM - 4:00 PM
Good to know about Theorem Vineyards
Can you visit Theorem Vineyards? Is there a tasting room?
Yes, Theorem Vineyards has a tasting room open to visitors (from their website, September 3, 2026). Visits are by reservation.
What is Theorem Vineyards known for?
Theorem Vineyards is known for laid-back, beautiful gardens, great architecture, dog-friendly and scenic views.
What wines does Theorem Vineyards specialize in?
Theorem Vineyards focuses on Cabernet Sauvignon, Merlot, Syrah, Chardonnay and Sauvignon Blanc, and more. Signature bottles include Voir Dire, Hawk's Prey, Decree, Merlot, Syrah, Cabernet Sauvignon, Chardonnay, Sauvignon Blanc, Blanc de Blancs.
How much is a tasting at Theorem Vineyards?
A tasting at Theorem Vineyards costs $200 per person.
Do you need a reservation to visit Theorem Vineyards?
Yes, Theorem Vineyards requires a reservation for tastings (from their website, September 3, 2026).
Does Theorem Vineyards serve food?
Yes, Theorem Vineyards has food available alongside tastings.
Is Theorem Vineyards dog-friendly?
Yes, Theorem Vineyards welcomes dogs.
Does Theorem Vineyards offer vineyard tours?
Yes, Theorem Vineyards offers vineyard tours. Options include Customized Tastings and Estate Visits.
Where is Theorem Vineyards located?
Theorem Vineyards is at 255 Petrified Forest Rd in Calistoga, CA, in the Napa Valley wine region. Phone: (707) 942-4254.
When was Theorem Vineyards founded?
Theorem Vineyards was established in 2017.
Who makes the wine at Theorem Vineyards?
The winemaking at Theorem Vineyards is led by Andy Jones.
What are Theorem Vineyards's tasting hours?
Theorem Vineyards is open every day, 10:00 AM to 4:00 PM.
Does Theorem Vineyards waive the tasting fee with a wine purchase?
Fee waived with 3 bottles.
Where to find Theorem Vineyards
Theorem Vineyards is at 255 Petrified Forest Rd, Calistoga, CA, United States, in the Diamond Mountain District wine region.