In 2004, Sherman and Michelle Thacher bought 52 acres carved out of the Old Kentucky Ranch, a working spread on the Paso Robles west side dating to 1869. The land came with a century-old apple orchard gone wild, weathered barns, and a long memory of cattle, racehorses and dirt farming. Sherman had spent sixteen years as an award-winning brewmaster at the Los Gatos Brewing Company, so he understood fermentation in his bones. He restored the stables and outbuildings, replanted heirloom apples, and set out to make wine with restraint in a region famous for power.

A brewmaster on an old ranch

Sherman and Michelle Thacher were living in the Santa Cruz area, he running a brewery and she working in Silicon Valley, when a 2003 wedding reception at the Old Kentucky Ranch put the place in their heads. A local tip soon followed that a parcel was coming available, and in 2004 they bought 52 acres of the historic property just west of Paso Robles. The winery and tasting room opened in 2008.

Sherman’s path to wine ran through beer. A UC Davis graduate, he spent sixteen years as the brewmaster at the Los Gatos Brewing Company and had been making wine professionally since 1993. That fermentation fluency shows in the cellar. Today he and assistant winemaker Brenna Hill, who started as a 2021 harvest intern and rose to assistant winemaker by 2023, produce all of the wine on site, around 5,000 cases, in a solar-powered winery built in 2008.

The Kentucky Ranch has been farmed since 1869, passing through dairymen, cattlemen, movie directors and racehorse breeders before the Thachers replanted it to vines.

The Kentucky Ranch and a lighter Paso

The Old Kentucky Ranch was established in 1869 and has been continuously farmed since: cattle and racehorses, orchards and vegetable gardens, dairy herds and vineyards, owned over the decades by everyone from farmers and mine owners to movie directors and horse breeders. The Thachers honored that history, restoring the historic barn and stables and replanting about twenty varieties of heirloom apple trees based on research into the original orchard.

Their estate sits on the Paso Robles west side, where calcareous soils and cool air from the Templeton Gap drive a big day-to-night temperature swing. The estate Kentucky Ranch Vineyard, planted in 2007, is largely Zinfandel and Petite Sirah, while the Homestead Hill Vineyard in the adjacent Willow Creek District grows a wide Rhone-leaning mix. Thacher has become a leading voice for what some call Paso’s new school, chasing higher acidity and lower alcohol where the region long pushed ripeness and weight.

Native ferments and restraint

The Thacher style is built on minimal intervention. Fermentations run on native yeast and native bacteria gathered in the vineyard, with minimal effective sulfur and nothing added in the way of enzymes, water, acids, tannins or nutrients. The aim is nuance over muscle, wines that come in lighter on alcohol and keep their lift, which is unusual in a region known for big, hot reds.

The lineup rewards that approach. Constant Variable is the house Rhone blend, GSM-based and shifting by vintage, full of lavender, black plum and bright red fruit. The Homestead Hill Vineyard Syrah is the serious bottling, earning 95 points from Wine Enthusiast for its violet, blueberry and asphalt aromas leading into baked blackberry, pepper and a savory, umami-laced finish. Zinfandel remains close to the founding spirit, including the artist-labeled Triumvirate, and there are characterful curiosities like a varietal Cinsault and the heirloom-leaning Carignan from Homestead Hill, both pointing to the lighter, fresher side of Paso.

What to pour Thacher with

Because these wines run leaner and brighter than typical Paso reds, acidity is your pairing ally. A bottle like Constant Variable cuts cleanly through richness, so it shines next to roast pork, herb-roasted chicken, mushroom risotto, or a tomato-based braise where the wine’s freshness resets the palate. The Cinsault and Carignan, lighter still and high in acid, even take a slight chill and pair with charcuterie or grilled vegetables.

The Homestead Hill Syrah, darker and more structured, wants more weight on the plate: grilled lamb, a peppercorn-crusted steak, or local red-oak-grilled tri-tip, where its firmer tannin binds to the fat and char and turns supple. The Zinfandel loves smoke and spice from the grill but keep chili heat moderate, since high alcohol and capsaicin amplify each other and can scorch a bold red. To tailor a match to a specific dish, run it through our wine pairing generator.

Visiting Thacher

Thacher Winery sits at 8355 Vineyard Drive on the Paso Robles west side, with tastings poured outdoors among the restored ranch buildings and old orchard, so reservations are recommended and you should confirm current hours and book before you arrive. The setting, a working piece of an 1869 ranch turned into a solar-powered, low-intervention winery, is as much of the draw as the glass. To weave it into a full west-side itinerary, see our Paso Robles guide.

Thacher Winery: common questions