Costco is facing a class action lawsuit alleging it falsely advertised its Kirkland Signature Seasoned Rotisserie Chicken as "preservative-free." Costco's rotisserie chicken is one seriously hot item. In fact, the company reported to shareholders that it sold 137 million units of its rotisserie chicken in 2023. On January 22, attorney Wesley Griffith filed a lawsuit on behalf of California residents Bianca Johnston and Anatasia Chernov, alleging that the retailer falsely advertised its Kirkland Signature Seasoned Rotisserie Chicken as preservative-free. The lawsuit argues that by representing its rotisserie chicken as containing "no preservatives," Costco signaled to "reasonable consumers" that the product contained "no additives that function to preserve the taste, flavor, texture, or shelf-life."