We ranked the 4 lowest-scoring drinks products at Costco based on real ingredient analysis. The average score is 81/100.
These products scored the lowest for ingredient safety among drinks at Costco. Every product has been analyzed for additives, seed oils, allergens, and harmful chemicals.
| # | Product | Brand | Score | Flags |
|---|---|---|---|---|
| 1 | 100% Columbian Cold Brew Coffee | Kirkland | 78/100 | Clean label ✓ |
| 2 | Pacific Bold Organic Dark Roast Coffee Extra Bold | Kirkland Signature | 78/100 | Clean label ✓ |
| 3 | Medium Roast Ground Coffee | Kirkland Signature | 78/100 | Clean label ✓ |
| 4 | Orange Juice | Kirkland | 90/100 | Clean label ✓ |
The most common issues include artificial additives, seed oils, and artificial colors. Many of these products contain ingredients that are banned or restricted in the EU but still legal in the US.
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CheckIt AI. (2026). "Worst Drinks at Costco — 4 Products Ranked by Ingredient Safety | CheckIt AI". Climaverse PBC. Retrieved from https://getcheck.it/worst-at/costco/drinks"Worst Drinks at Costco — 4 Products Ranked by Ingredient Safety | CheckIt AI." CheckIt AI, Climaverse PBC, 2026-03-05. https://getcheck.it/worst-at/costco/drinks.<a href="https://getcheck.it/worst-at/costco/drinks">Worst Drinks at Costco — 4 Products Ranked by Ingredient Safety | CheckIt AI — CheckIt AI</a>@misc{checkit2026worstatcostcodrinks,
title = {Worst Drinks at Costco — 4 Products Ranked by Ingredient Safety | CheckIt AI},
author = {CheckIt AI},
year = {2026},
publisher = {Climaverse PBC},
url = {https://getcheck.it/worst-at/costco/drinks},
note = {Retrieved 2026-03-05}
}