About Sonoma Portworks
Sonoma Portworks is a distinctive small winery in Petaluma with a singular focus: it's the county's specialist in port and after-dinner wines. Founded in 1994 by Bill and Caryn Reading, originally near the town of Sonoma before relocating to Petaluma, it has spent three decades coaxing California grapes into elegant, balanced fortified wines, becoming the only winery in Sonoma County devoted to the style (in 2025 the founders passed the torch to Clarksburg's Heringer Estates, who continue the tradition).
Drink dessert is the house motto, and the handcrafted portfolio delivers: tawny and vintage ports from Petite Sirah and Petit Verdot, the signature Deco Port infused with dark chocolate, a Rose Port, a Chardonnay-based White Port, sherry, grappa, and even a balsamic-style Sonomic vinegar.
The cozy tasting room, tucked into the historic Foundry Wharf along the Petaluma River, is a genuine hidden gem, relaxed and welcoming, with cheese pairings, an outdoor patio and knowledgeable hosts happy to explain how port is made. Walk-ins welcome.
Sonoma County's only dedicated port house, pouring handcrafted fortified wines and its signature chocolate Deco Port in a cozy Petaluma room.
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Sonoma County's port specialistThe only winery in the county devoted to port and after-dinner wines, since 1994.
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A handcrafted fortified portfolioTawny and vintage ports, a chocolate-infused Deco Port, sherry, grappa and more.
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A cozy Foundry Wharf roomA relaxed, welcoming tasting room by the Petaluma River, with cheese pairings and walk-ins welcome.
"Sonoma County's only dedicated port house, pouring handcrafted fortified wines and its signature chocolate Deco Port in a cozy Petaluma room."
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Current Releases
Wines change with each vintage
For an accurate list of current-release wines and library bottlings from Sonoma Portworks, please check the winery's official website or contact the tasting room directly. Producers typically rotate vintages and offerings seasonally.
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Port & Dessert Tasting
A walk-in tasting through the port-style and dessert wine lineup at the 2nd St home in downtown Petaluma.
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