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Sterling Vineyards: how much do the labels prove?
GreenSpecs has graded 1 product from Sterling Vineyards on the strength of the evidence behind the claims on the pack.
- Products graded
- 1
- Average GreenSpecs score
- 67/100
- Best graded
- Sterling Vineyards Napa Valley Cabernet Sauvignon 2021 — B+ 67/100
- Assessments updated
- 12 July 2026
Source: GreenSpecs label assessments of Sterling Vineyards products, 12 July 2026.
Where this number comes from. GreenSpecs scores the evidence a product puts in front of you: the wording of the claim, what the packaging discloses, and whether an independent certifier stands behind any of it. Each score is a GreenSpecs assessment generated by our scoring model from the product label and public claim text on the date shown. It is not a laboratory test, not a lifecycle assessment, and not a safety rating. The full method is published here.
Does Sterling Vineyards back up its claims?
Across the 1 Sterling Vineyards product graded so far the average score is 67 out of 100. A certified sustainable California wine. Good for the land. That is the pattern the table below fills in, product by product.
| Product | Brand | Grade | Score | What the label proves |
|---|---|---|---|---|
| Sterling Vineyards Napa Valley Cabernet Sauvignon 2021 | Sterling Vineyards | B+ | 67/100 | A certified sustainable California wine. Good for the land. |
Where Sterling Vineyards products show up
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