High confidence
Exact registry match — this is a specific TTB COLA record. We found a strong match for this wine.
What to Expect
Expect a dessert-style Zinfandel from California that offers rich, dark flavors reminiscent of traditional reds, with notes of blackberry and raspberry jam. This versatile grape variety can also be enjoyed in its off-dry version, perfect for sipping on its own or pairing with a wide range of dishes including barbecue, grilled meats, and tomato-based pasta.
Original editorial summary © 2026 Encyclopedia of Wine. All rights reserved; may not be reproduced without permission. Registry facts are public TTB data; brand names and label artwork remain the property of their respective producers.
| TTB ID | 18039001000477 |
|---|---|
| Brand name | ROSENBLUM CELLARS |
| Fanciful name | SINGLE VINEYARD |
| Class / type | — |
| Origin / appellation | — |
| Grape varietals | Zinfandel |
| Approval date | Feb 21, 2018 |
| Status | APPROVED |
| Serial number | 180025 |
| Permit number | BWC-CA-4623 |
| Producer name & address | BRONCO WINE COMPANY 1081 NAPA RD SONOMA CA 95476 ROSENBLUM CELLARS (Used on label) |
| TTB record | View on TTB COLA Online → |
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