Twiningvine LLC has farmed dry since its founding in 2008, working estate vineyards in Castro Valley with no supplemental water. The only estate winery in the area, the program centers on Cabernet Franc, Zinfandel, and Tempranillo, alongside the dessert wine Lazy Eight. Recent medals at OC Wine Competition 2026 include Silver for the 2022 Estate Cabernet Franc, 2024 Estate Rosé, and 2022 Estate Tempranillo, plus Silver for Lazy Eight and Bronze for the 2022 Estate ZIN-GIO blend. Tastings happen the second and fourth weekends of each month, March through September, outdoors under oak on the patio of a historic barn.
Yes, Twiningvine LLC has a tasting room open to visitors.
Twiningvine LLC focuses on Cabernet Franc, Zinfandel, Tempranillo. Signature bottles include 2022 Estate Cabernet Franc, 2024 Estate Rosé (Zinfandel), 2022 Estate Tempranillo, Lazy Eight dessert wine, 2022 Estate ZIN-GIO. When booking a tasting, ask which current release best represents the estate's style.
Yes, Twiningvine LLC has food available alongside tastings. Having food while tasting reduces the effect of alcohol and helps you taste more accurately. Worth taking advantage of when offered.
Yes, Twiningvine LLC has a picnic area. Call ahead to confirm any corkage fee or outside-food policy. Some estates allow you to bring provisions; others have restrictions. Arrive early on weekends to secure a good spot.
Yes, Twiningvine LLC welcomes dogs. Policies usually cover outdoor areas only and expect dogs on a leash. Call ahead if you're bringing more than one, or if the weather is pushing everyone indoors.
Twiningvine LLC is set up for an adults-only tasting. Book a sitter or choose a family-friendly estate if the whole group is coming.
Twiningvine LLC is in Castro Valley, California. Phone: +1 510-582-7391. Confirm hours before visiting. Winery schedules vary seasonally.
Twiningvine LLC was established in 2008, giving the estate 18 years to develop its wine program and farming practices.
Twiningvine LLC offers: Outdoor Wine Tasting, Pet Adoption Events, Live Music Events and Charcuterie Pairings. Seated or guided experiences typically include more context about the wines and the estate's approach. Worth booking if you want depth over breadth.
Monday: Closed | Tuesday: Closed | Wednesday: 11:00 AM – 6:00 PM | Thursday: 11:00 AM – 6:00 PM | Friday: 11:00 AM – 6:00 PM | Saturday: 11:00 AM – 6:00 PM | Sunday: 11:00 AM – 6:00 PM Hours may vary seasonally. Confirm by phone or on their website before visiting.
Yes, Twiningvine LLC has outdoor seating. Availability is weather-dependent. Call ahead to confirm, particularly outside summer months.
Where to find Twiningvine LLC
16851 Cull Canyon Rd Castro Valley, California, United States of America
