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 California Chardonnay Sparkling Wine that showcases the versatility and adaptability of this versatile grape. With roots tracing back across continents, KOSTA BROWNE’s Chardonnay brings a nuanced flavor profile perfect for those who appreciate a touch of elegance in every sip.
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 | 24191001000609 |
|---|---|
| Brand name | KOSTA BROWNE |
| Fanciful name | KEEFER RANCH BLANC DE BLANCS |
| Class / type | — |
| Origin / appellation | — |
| Grape varietals | Chardonnay |
| Approval date | Jul 17, 2024 |
| Status | APPROVED |
| Serial number | 241886 |
| Permit number | BWN-CA-21412 |
| Producer name & address | Rack & Riddle, Rb Wine Associates, LLC 499 & 451 MOORE LN Healdsburg CA 95448 KOSTA BROWNE 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 →