All Wines


Stratum Estate Red Wine

Stratum is a Cabernet Sauvignon-based blend that captures the energy and tension of rare deposits of volcanic soils underlying the western slopes of Sonoma’s Mayacamas Mountains. In homage to the central role that geologic exploration played in crafting this wine and in recognition of it being a singular expression of an expansive area across our estate vineyards, we call it Stratum.


photo of Hamel Vineyards along mountain rise with coast and skyline in background
photo of row of oak casks in Hamel winery


The bouquet of the 2020 Stratum reveals dark cherry, plum and cassis, complemented by notes of violets, cedar and iron. Dark fruit flavors envelop a sanguine mineral core on the palate, framed by fine, supple tannins and a refreshing vibrancy. Balanced and classically poised, the wine shows an intricate, chalky minerality that brings depth and persistence. 

Extreme close up of terroir

Vintage Notes and Technical Details

The 2020 vintage began with substantial rainfall in December of 2019, which re-filled our soil’s water table and allowed for beneficial mineralization of nutrients throughout the early part of winter. Below average rainfall in the first quarter of 2020, combined with above average temperatures, led to an early budbreak across our four estate vineyards. Despite the low rainfall, and the historically warm spring, summer and fall, we were able to dry farm 68% of our vineyards. The dry and warm year yielded smaller berries showing a high degree of intensity and concentration. This allowed for our earliest harvest dates on record beginning on August 14th and finishing on September 22nd.

  • Blend: 66% Cabernet Sauvignon, 34% Merlot
  • Production: 1987 Cases
  • Appellation: Sonoma Valley
  • Vineyard: 77% Nuns Canyon Vineyard, 23% Hamel Family Ranch
  • Fermentation: 56% Neutral French Oak Barrels, 30% Stainless Steel Tanks, 14% Concrete Eggs
  • Aging: 12 months in 72% Neutral French Oak Casks, 9% New French Oak Barrels, 19% 1-Year-Old French Oak Barrels followed by 5 months in 100% Concrete Tanks
  • Bottling Date: June 27, 2022
  • Harvest Dates: August 31 – September 19, 2020
  • Alcohol: 14.3%
Landscape photo of vineyards with native treeline in foreground and cloudy sky overhead
Drone photo of Hamel vineyards with foggy coast in background

Explore Our Vineyards

To capture the complexity of our vineyards’ volcanic terroir, we embrace a level of precision, scale and knowledge that reflects the geologic contours of our place.