Guild of Sommeliers Certified Sommelier Practice Test 2026 – The All-in-One Guide for US and Canada Success!

For wine labeled with a state or county designation, the required percentage of grapes from a stated vintage is indeed 85%. This means that at least 85% of the grapes used in the production of that wine must come from the year indicated on the label. This regulation ensures a level of authenticity and quality, allowing consumers to have a better understanding of the wine's age and vintage characteristics.

Wines labeled with a specific vintage but without a specific AVA (American Viticultural Area) designation can still offer some insight into the quality and conditions of that year's harvest, which can affect the wine's flavors and overall profile. The 85% requirement is rigorous enough to maintain quality while still permitting some flexibility for winemakers.

The percentages for other labels or designations may differ, which is important when considering how appellation laws vary. Understanding this regulation helps wine professionals communicate effectively with consumers about what they can expect from a bottle's contents based on the vintage and origin.