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 Sauvignon blanc from California, perfect for sipping after dinner or as a versatile cooking wine. This grape variety offers strong herbaceous and citrus notes, reminiscent of its origins in New Zealand's Marlborough region and France's Loire Valley. With its consistent presence in the U.S. COLA registry, this dessert-style Sauvignon blanc is sure to delight with its unique flavor profile.
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 | 18009001000449 |
|---|---|
| Brand name | PROTHRO |
| Class / type | — |
| Origin / appellation | — |
| Grape varietals | Sauvignon blanc |
| Approval date | Jan 10, 2018 |
| Status | APPROVED |
| Serial number | 180971 |
| Permit number | BWN-CA-21156 |
| Producer name & address | WINE FOUNDRY, VIGNETTE WINERY, LLC 45 ENTERPRISE CT UNIT 1,2,3,4,7 NAPA CA 94558 PROTHRO FAMILY WINES (Used on label) |
| TTB record | View on TTB COLA Online → |
Official Source
TTB remains the source of record. Wine Grabber links each record back to the public COLA detail when available.
View official TTB record → Related Registry Pages
What would you like to do next?
Wine Grabber is a free public registry. Pick the path that fits you — your choice helps us learn what people come here for.
For wine drinkers
Understand & remember this wine
Scan, understand, save, and learn about this wine.
For wine businesses
Manage & monetize this wine data
Turn labels into clean product records, menus, shelf cards, ecommerce copy, and inventory-ready wine data.
Data sourced from the public TTB COLA Online registry. Wine Grabber is not affiliated with or endorsed by TTB.
Label images are being added for a growing share of records as we harvest them from TTB. Coverage is partial and growing. Coverage & Limitations →