MarBeso is a small, family-run Santa Barbara County label built on a single obsession: how close the ocean sits to the vine. Winemaker Colin McNany sources organically grown fruit from cool, coast-kissed sites in the Sta. Rita Hills and the Santa Cruz Mountains, then makes clean, low-intervention wines that keep their nerve and their salt. Visits happen at a Buellton cellar door, by appointment, often with Colin pouring.

The story

The name says everything. MarBeso means kiss of the sea, and on every bottle Colin McNany prints how far the grapes grew from the coastline, a small act of honesty that doubles as a thesis. The ocean has run through his whole life, from a childhood in Palos Verdes to college years in Santa Cruz, and that pull is the reason this winery exists at all.

McNany studied sustainable agriculture and ecology at UC Santa Cruz and wrote his thesis on sustainable viticulture, then went to the source. He planted vines in the Santa Cruz Mountains, worked harvests at Byington and La Honda, chased wild-ferment Pinot Noir in the Martinborough hills of New Zealand, and learned Chardonnay in the Margaret River of Western Australia. The ocean sat at the edge of every one of those places.

MarBeso was born during the 2019 vintage in a Buellton warehouse once occupied by Bonaccorsi Wine Company. The seed money came from a small inheritance left by Colin’s father, a former bond trader, and Colin made a bet on himself, figuring he could beat the market by backing his own hands. He runs the brand with his wife Hannah as a genuine family operation, where the person who farmed the call is the one who pours your glass.

The place

MarBeso is rooted in the Sta. Rita Hills, the coolest and most coastal of the Santa Barbara appellations, and it leans on that climate the way a sailor leans on the wind. Here the mountain ranges run east to west, a rare transverse geology that opens the valleys straight to the Pacific. Morning fog pours inland, the afternoon ocean breeze keeps the fruit from rushing, and the temperature falls hard at dusk. That daily swing is the whole secret. It lets grapes ripen slowly and hold their acid, which is exactly the bright, lifted character Colin is after.

The Sta. Rita Hills floor is built from sand, silt, and ancient diatomaceous seabed, soils so poor and free-draining that the vines have to work, and that struggle shows up as tension and minerality in the glass. Spear, one of MarBeso’s anchor sites, sits in the appellation’s northern corridor on wind-raked slopes of sandy loam, certified organic and farmed for nerve rather than weight. When the wines reach north to the Santa Cruz Mountains, it is the same instinct chasing the same cold Pacific air to another set of high, fog-touched ridges.

What they grow and make

MarBeso is a vineyard-designate house, which means each wine carries the name and signature of a single site rather than getting blended into a house style. Chardonnay is the heart of it. The Spear Vineyard Chardonnay from the Sta. Rita Hills is the calling card, made in a Chablis register: racy, crisp, mineral-driven, more about cut and stone than butter and oak. The Chapel Vineyard bottling works the same cool, taut seam.

Pinot Noir comes from cold corners on both ends of Colin’s map, including the Ascona Vineyard in the Santa Cruz Mountains and the Our Lady of Guadalupe Vineyard in the Sta. Rita Hills, the kind of fog-fed, high-acid sites where Pinot keeps its red-fruited lift and savory edge. The reds widen from there into a Rock Hollow Vineyard Cabernet Franc from the Los Olivos District, a John Sebastiano Vineyard Syrah, and a Grenache and Syrah blend that turns the warmer inland fruit into something fresh rather than heavy.

There is a playful streak too. MarBeso makes a skin-contact white called Magic Hour, an orange wine that leans into texture and a little wildness, the sort of bottle that says this is a winemaker following curiosity, not a formula. Across the lineup the through-line is restraint: freshness and energy over weight and power, every wine asked to taste like the cold place it came from.

Farming

Colin works almost exclusively with organically grown or certified-sustainable fruit, choosing respected Central Coast growers who farm the way he would. Spear, for example, is certified organic. In the cellar the approach is minimal intervention by conviction: native yeasts and wild bacteria carry the fermentations, the oak is neutral French barrels chosen for shape rather than flavor, and the wines are bottled unfined and unfiltered. The aim is a clean, pure, acid-driven wine that has been guided rather than manipulated.

Visiting

MarBeso keeps a working cellar door in Buellton, shoulder to shoulder with a tight circle of small, serious producers. Tastings are intimate and by appointment only, usually a walk through the current releases with Colin himself, which is the rare chance to talk minimal-intervention winemaking with the person who actually did it. Because it is a small operation, reservations are essential, and larger parties should reach out ahead.

Food pairing

These are wines built for the table, because acid is the great connector of wine and food. Start with the Spear Vineyard Chardonnay. Its high-acid, mineral cut is congruent with raw oysters and complementary against anything rich, slicing through drawn butter or a creamy gratin and resetting the palate for the next bite. The same logic makes it a natural with goat cheese, where the wine’s brightness and the cheese’s tang meet in the middle.

The Pinot Noir wants savory, earthy food. Its light tannin and red-fruit lift bridge beautifully to seared duck breast with a cherry reduction, or to mushrooms and roast chicken, meeting the fungi on shared earthy notes. The Cabernet Franc, with its herbal, peppery streak, loves grilled lamb and anything touched by green herbs, while the Syrah and the Grenache-Syrah blend, fresher and lower in weight than most California reds, can handle smoke and char without amplifying it. Want a match for your own menu tonight? Run it through our wine pairing generator for a specific suggestion.

Keep exploring from here. Read more about the cool-climate magic of the Sta. Rita Hills, see how MarBeso fits the wider story of Santa Barbara County wine, or go deeper on the grapes with our guides to California Chardonnay and California Pinot Noir, then plan a dinner with the wine pairing generator.

Visitors short on time often start at the Funk Zone, the walkable warehouse district near the Santa Barbara waterfront where a large share of the county’s producers keep a tasting room.