Sonoma Port Works

Sonoma Port Works: Hand Made Port in Petaluma, CA


Sonoma Portworks is the only winery in Sonoma County that specializes in ports and after-dinner wines, and one of only a handful in the entire state. As a pioneer in the industry, we like to discover what’s possible whether that means using an unusual grape to make a port or creating unique flavor combinations in our after-dinner wines.

Location Description

Located in the heart of Santa Cruz, California.


  • We make fine ports, after-dinner sherry and grappa.

Additional Information

  • Meeting / Conference Facilities:
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Average Bottle Price

$ 30


Port has thousands of years of complicated history involving wars, treaties and international shipping practices. Our history is a lot simpler—and a lot more fun.

Bill Reading always knew chocolate and wine were meant for each other. But chocolate and wine didn’t seem to think so. His attempts to marry the two into one unique after-dinner wine just didn’t work. That all changed on a night 20 years ago when he and a winemaker friend took a chance and added a dash of dark chocolate essence into a glass of port.

One sip and he knew that he’d found the perfect pairing. That’s when DECO was born—a port with essences of dark chocolate. A year later, using his creative matchmaking skills, Bill created DUET, an after-dinner sherry with essences of natural hazelnut.

With their unique composition and sleek packaging, DECO and DUET revolutionized the fortified wine world. Many port and sherry producers have tried to copy this formula.

Bill’s creativity extends to other drinkable delights. We now offer single vintage, single vineyard ports made from sustainably grown petite sirah and petite verdot grapes. We distill three distinctive grappas from the pomace left from portmaking and recently introduced DYNA, a refreshing Chardonnay-based aperitif.

From the beginning, Caryn Reading has worked alongside Bill. Her culinary skills and palate are the perfect match for Bill’s unique approach. You’ll often find her in the Portworks tasting room chatting with port lovers and first-time tasters about the pleasures of pairing port with cheese, desserts and other after-dinner creations.

Practices & Techniques

Our certified organic and sustainable petite sirah and petite verdot grapes are harvested by hand from the Heringer Family vineyards in Clarksburg. The Heringers have proudly worked their vineyard land for five generations.

Instead of using a propane forklift we move the bins in our cellar using a hand-powered pallet jack. We then use five-gallon buckets to move the must through the portmaking process by hand. Using a handmade press specially designed for us, we press the grapes by foot for our award-winning ports and after-dinner wines and age them in recycled barrels.

The pomace left after pressing is distilled into our grappas at Stillwater Spirits next door. Whatever remains after distillation is recycled back into the vineyard.

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Mon:12:00 pm - 5:00 pm Thu - Sun:12:00 pm - 5:00 pm


613 2nd Street
Petaluma, California 94952
United States

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