MYNORTHWEST NEWS

Costco hit with lawsuit over Kirkland Signature tequila

Nov 14, 2025, 5:49 PM

Costco lawsuit rotisserie chicken...

A sign hangs outside of Costco Wholesale store. (Photo: Scott Olson, Getty Images)

(Photo: Scott Olson, Getty Images)

Costco is being sued over its Kirkland Signature tequila.

The class-action lawsuit claims the retailer falsely advertised the product as “100% de Agave” or “100% Blue Agave” when it actually contains “cheaper, non-agave alcohol, misleading consumers across the country.”

Labeling the product as 100% agave tells customers the tequila was made solely from the Blue Weber agave plant. However, attorneys stated, scientific testing revealed the presence of non-agave sugars in the Kirkland products.

Kirkland Signature tequila

This image depicts Kirkland Signature tequila that is labeled as “100% de Agave.” (Image courtesy of Hagens Berman)

Lawsuit alleges Kirkland Signature tequila contains other sugars, alcohols

The complaint claims the tequila has significant levels of cane or other types of alcohol, rather than pure tequila.

“By falsely branding Kirkland Tequila Products as ‘100% de Agave,’ or ‘100% Blue Agave,’ Costco misled consumers, distorted the premium tequila market, and profited from a deception that violates the core principles of consumer protection law,” the lawsuit stated.

The firm alleges Costco violated the Racketeer Influenced and Corrupt Organizations (RICO) Act and consumer protection laws by deceiving customers.

Products named in the lawsuit include: Costco Kirkland Blanco Tequila, Costco Kirkland Reposado Tequila, Costco Kirkland Añejo Tequila, Costco Kirkland Añejo Cristalino Tequila, and Costco Kirkland Tequila Extra Añejo.

More than 10 plaintiffs are seeking monetary damages.

MyNorthwest has reached out to Costco for comment.

Follow Julia Dallas on X. Read her stories here. Submit news tips here.

MyNorthwest News

labor day...

Associated Press

What’s open on Labor Day? Most retailers. Closed? Government, banks and the stock market.

The origins of Labor Day date back to the late 19th century, when activists first sought to establish a day that would pay tribute to workers.

2 minutes ago

police lights skyway shooting...

KIRO 7 News Staff

Shots fired between two cars injure child in Skyway

A child sustained minor injuries from shattered glass when shots were fired between two cars in Skyway.

1 hour ago

strike embassy suites...

KIRO Newsradio staff

Seattle mayor, King County executive join striking workers at Embassy Suites

Seattle Mayor Katie Wilson and King County Executive Girmay Zahilay joined striking workers at the Embassy Suites in Pioneer Square.

2 hours ago

Renton market...

KIRO 7 News Staff

A new public market is coming to Renton

The City of Renton is getting some upgrades. The Renton Market is currently under construction.

3 hours ago

amazon cargo plane...

Associated Press

Federal investigators probe Amazon cargo jet’s fiery runway crash that killed 5 in Miami

Federal investigators are examining why an Amazon cargo jet barreled off a runway at Miami International Airport and into vehicles.

4 hours ago

lake stevens plane crash...

MyNorthwest Staff

Lake Stevens neighbors provide first aid after pilot seriously injured in small plane crash

Neighbors quickly responded after a small plane crashed in Lake Stevens Sunday night.

4 hours ago

Costco hit with lawsuit over Kirkland Signature tequila