Did you buy Kirkland Signature tequila from Costco? The tequila you bought may have been falsely marketed, adulterated tequila, not the 100% agave you paid for. Find out your rights »
WHAT’S THE ISSUE?
Hagens Berman’s consumer rights legal team has filed a class action against Costco Wholesale Corp., manufacturer and seller of Kirkland Signature tequila, accusing the retailer of knowingly selling tequila that is not “100% Blue Weber Agave” as marketed. Costco labels its Kirkland Signature tequila as “100% DE AGAVE” and as “100% AGAVE AZUL.” However, attorneys have uncovered evidence that Kirkland Signature tequila allegedly contains significant levels of cane and or other types of alcohol — rather than pure tequila — while consistently being sold and marketed as a premium product. We believe purchasers may have been misled by Costco’s marketing of Kirkland Signature tequila, and may have considered purchasing similar products instead had they known the truth about the ingredients.
ABOUT COSTCO’S ALLEGED ADULTERATED TEQUILA
Costco promotes its Kirkland Signature tequila as a comparable product to other tequila options on the shelf, with customers paying between $18.69 and $48.99 per bottle. According to the label of its Reposado tequila, “This very special Reposado tequila is a blend of tequila rested in American & French oak using 100% Blue Agave. Salud!”
But according to attorneys, despite the promises of its label, Kirkland Signature tequila has been deemed to have been adulterated and is not made exclusively from Blue Weber agave sugars.
Affected products may include:
- Costco Kirkland Blanco Tequila
- Costco Kirkland Reposado Tequila
- Costco Kirkland Añejo Tequila
- Costco Kirkland Añejo Cristalino Tequila
- Costco Kirkland Extra Tequila Añejo
100% BLUE WEBER AGAVE TEQUILA
Blue Weber agave, known for its unique blue-gray color, is the only agave species legally permitted under U.S. and Mexican law to be used in tequila production. Spirits made from 100% Blue Weber agave are sold at a premium because it takes an estimated 5-10 years to grow and is more difficult to harvest.
In early 2025, Mexican media reported that agave growers in Mexico demonstrated against tequila companies protesting the use of non-agave ingredients. Other advocates have protested the lack of the tequila industry’s regulatory compliance and believe, despite supposedly being regulated by Mexico’s Tequila Regulatory Council, the nonprofit organization could be heavily influenced and controlled by the interests of leading tequila manufacturers.
YOUR CONSUMER RIGHTS
Hagens Berman believes consumers have a right to honest information about the products they buy. When those products are marketed, sold and advertised, preying on a buyer’s intent to purchase a high-quality product, a company like Costco has a duty to provide factual information. We believe Costco made false claims about its Kirkland Signature tequila products while hiding alleged adulteration from consumers. The firm is seeking potential compensation for consumers and business owners that bought the affected products, as well as an injunction to put an end to Costco’s alleged actions.
TOP CONSUMER LAW FIRM
Hagens Berman is one of the most successful litigation law firms in the U.S. and has achieved total settlements valued at more than $340 billion in class-action lawsuits against the world’s largest product manufacturers, high-tech companies, banks, automakers and more. The firm is also actively litigating similar claims regarding Casamigos “super-premium tequila brand,” and Don Julio, promoted as a “luxury tequila” for not being the “100% Blue Weber Agave” as promised on the label. Hagens Berman has achieved record-breaking settlements in consumer-protection lawsuits, and your claim will be handled by attorneys experienced in this area of law.
NO COST TO YOU
In no case will any class member ever be asked to pay any out-of-pocket sum. In the event Hagens Berman or any other firm obtains a settlement that provides benefits to class members, the court will decide a reasonable fee to be awarded to the legal team for the class.
