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Costco sued for falsely labeling Kirkland tequila as 100% agave, with tests finding non-agave sugars and alcohol.
A class action lawsuit alleges Costco misled consumers by labeling its Kirkland Signature tequila as "100% Blue Weber agave" despite scientific testing showing non-agave sugars and ethanol in the products, violating federal and state consumer protection laws.
The suit, filed in October 2025, claims the tequilas—Blanco, Reposado, Añejo, Añejo Cristalino, and Extra Añejo—were adulterated and sold at premium prices based on false claims, with NMR testing detecting cane sugar and non-agave alcohol.
Plaintiffs argue this constitutes deceptive marketing and seek damages, restitution, and injunctive relief.
Costco has not responded publicly.
Costco demandó por etiquetar falsamente el tequila Kirkland como 100% agave, con pruebas que encontraron azúcares y alcohol que no son de agave.