What percentage of grapes is needed from the stated vintage for a wine labeled with an AVA designation?

For a wine labeled with an American Viticultural Area (AVA) designation, at least 95% of the grapes must come from the stated vintage. This requirement ensures that the vintage on the label reflects the actual grapes used, thereby providing consumers with a more accurate representation of the wine’s character that is influenced by climate and growing conditions of that specific year. AVA regulations are designed to maintain trust and authenticity in labeling, ensuring consumers can make informed choices based on vintage characteristics.

The remaining percentage can be comprised of grapes from other vintages, but the primary source must come from the year indicated. This strict guideline differentiates AVA designated wines from those with less stringent requirements, where lower percentages of the stated vintage might be allowed. Understanding this rule is crucial for anyone involved in wine service, as it not only affects labeling but also influences the perceived quality of the wine.