Costco is being sued for allegedly falsely advertising its Kirkland tequilas as being made with 100% Blue Weber agave.

According to the proposed class action lawsuit filed in the Southern District of Florida on Oct. 31, Nuclear Magnetic Resonance testing confirmed that the tequilas contained so much sugar that they wouldn’t qualify as tequila.

Specifically, the federal lawsuit states that the tequilas “contain material amounts of ethanol not derived from agave plants, and, as such, they were adulterated with ethanol other than that obtained from Blue Weber agave."

USA TODAY has contacted Costco for comment on Nov. 14, but has not received a response.

What does the lawsuit mean for consumers?

Typically, shoppers would pay premium prices for the spirit with the 100% Blue Weber agave

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