verified · TTB List of Permittees
Editorial profile
Krupp Brothers is a Napa Valley winery founded in 1999 by brothers Dr. Jan and Bart Krupp, built around fruit from their Stagecoach Vineyard — red, rocky volcanic soil on the Vaca Mountains above the Silverado Trail — along with the Krupp Brothers estate vineyard, Shake Ridge Vineyard and J-Squared Vineyard.
The portfolio is Cabernet Sauvignon-led (Veraison, Wheelman, M5) but runs unusually wide for a Napa producer of its size, into a Tempranillo-Cabernet blend (The Doctor), a seven-variety red blend (The Water Witch), a Cabernet Franc-Merlot blend (Synchrony), a varietal Viognier (Black Bart's Bride) and Chardonnay and Sauvignon Blanc bottlings. The estate and tasting room sit at the foot of the Vaca Mountains off the Silverado Trail.
Facts read from kruppbrothers.com
What's on file
Address
1094 HARDMAN AVE
Where it's registered
Hovering a shaded region names it; a click opens its page.
- Principal1094 HARDMAN AVE, NAPA
The ground it sits on
AVA · Napa Valley
6.3
pH, 1:1 water
13.2cm
, whole profile
98cm
to
Well drained
, dominant condition
Distribution across 232 · mean ◆, median │, p10–p90 bar
Dominant
- 14.6%
- 8.9%
- 8.8%
- 8.7%
- 6.5%
232 map units · soil described over 96.5% of the region’s area · 10.8% is water, rock outcrop or other non-soil · 77% of the described area has a restrictive layer within the profile.
Wines
100% Viognier per the winery's 2024 tasting-note sheet
blend · Napa Valley
96% Cabernet Sauvignon, 4% Petit Verdot per the winery's 2023 tasting-note sheet
blend · Napa Valley
80% Tempranillo, 20% Cabernet Sauvignon, sourced from Shake Ridge, Stagecoach and the Krupp Brothers estate vineyard, per the winery's 2023 tasting-note sheet
blend · Napa Valley
41% Malbec, 29% Merlot, 15% Syrah, 9% Cabernet Franc, 4% Tempranillo, 1% Petit Verdot, 1% Sangiovese per the winery's 2023 tasting-note sheet
blend · Napa Valley
57% Cabernet Franc, 35% Merlot, 7% Malbec, 1% Petit Verdot per the winery's 2022 tasting-note sheet; sourced from Stagecoach Vineyard
Cabernet Sauvignon · Napa Valley
100% Cabernet Sauvignon per the winery's 2022 tasting-note sheet
Cabernet Sauvignon · Napa Valley
100% Cabernet Sauvignon per the winery's 2022 tasting-note sheet
100% Chardonnay per the winery's 2023 tasting-note sheet
100% Sauvignon Blanc per the winery's 2025 tasting-note sheet
blend · Napa Valley
85% Cabernet Sauvignon, 15% Syrah, from J-Squared Vineyard, per the winery's 2025 tasting-note sheet
100% Syrah per the winery's 2022 tasting-note sheet
blend · Napa Valley
94% Merlot, 3% Petit Verdot, 1% Syrah, 1% Cabernet Sauvignon per the winery's 2019 tasting-note sheet
12 of 12 wines link to the page they were read from. The list is what a producer publishes about itself, one citation at a time — it is not a catalog, and a wine missing from it is uncurated rather than unmade.