In the Prüfungsnummer, what does the 4th set represent?

• A. region
• B. commune in
• C. unique bottling code
• D. application year

Answer: (C)

The fourth segment of the Prüfungsnummer is a unique bottling code, used to identify a specific bottle or production run. Its purpose is precise traceability: it distinguishes one bottle from every other bottle of the same wine, even if they come from the same producer or vintage. This makes it possible to track exactly which sample is being referred to in records, tastings, or recalls.

Geographic origin details like region or commune are typically represented by other parts of the code or by different labeling lines, and the year (vintage or application year) is captured separately as well. The fourth set, however, is dedicated to capturing the bottle’s specific identity within the production, ensuring clarity when referencing a single unit.