Don’t Count Your Chickens: Ninth Circuit Cracks Down on Class Certification in Egg Labeling Dispute

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Rusoff v. Happy Grp., Inc., No. 24-7706 (9th Cir. Aug. 17, 2026)

The U.S. Court of Appeals for the Ninth Circuit recently handed defendants in consumer, false advertising class actions a significant win - and a practical blueprint for defeating class certification. In Rusoff v. Happy Group, Inc., the court reversed class certification in a case challenging the use of "pasture raised" labels on egg cartons, holding that plaintiffs who cannot establish classwide proof of consumer deception cannot salvage certification through common questions of materiality and damages alone.

Background

The Happy Group markets eggs under the "Happy Egg" brand, with cartons advertising that its hens are "free range" and "pasture raised on over 8 acres." Plaintiffs Jonathan Rusoff and Joseph Gambino filed suit on behalf of California and New York consumer classes, alleging that "pasture raised" carries a specific meaning tied to standards promulgated by the American Humane Association (AHA) and Humane Farm Animal Care (HFAC) - and that Happy Egg's practices did not meet those standards.

The plaintiffs' theory depended on two expert opinions working in tandem. Dr. Craig Morris attempted to establish that the AHA and HFAC standards constituted the dominant industry definition of "pasture raised," while Dr. J. Michael Dennis' consumer survey purported to demonstrate that reasonable consumers understood a carton's label pursuant to those industry standards identified by Dr. Morris. The district court excluded Dr. Morris' testimony under Daubert, finding his methodology - which consisted of online research and informal photographs of egg cartons in grocery stores near his Seattle home, rather than in California or New York - fell far short of the rigor required of expert testimony on consumer understanding. Without Dr. Morris' excluded opinion, the district court found that the plaintiffs did not show that common questions of deception predominated. Nevertheless, the district court certified California and New York classes based on purportedly common questions of materiality and damages.

Ninth Circuit's Decision

Happy Egg was granted leave to file an interlocutory appeal, and the Ninth Circuit reversed. Writing for the panel, Judge Daniel Bress affirmed the exclusion of Dr. Morris, noting that his admitted lack of expertise in egg standards, combined with a self-described "personal purposes" grocery store survey conducted outside the relevant markets, did not satisfy Daubert's reliability threshold. As a result, the plaintiffs lacked common proof connecting the allegedly dominant industry standards to consumer perceptions. Further, without Dr. Morris, Dr. Dennis' perception survey merely showed that consumers distinguish "pasture raised" from "free range" - not that consumers associate those terms with any particular certification standard or that reasonable consumers would be deceived by Happy Egg's use of the term "pasture raised" on its egg cartons. Accordingly, the district court correctly determined that the plaintiffs did not show that common questions of deception predominated.

The Ninth Circuit then held that common questions of materiality and damages could not carry the predominance analysis when the foundational "central element" lacks classwide proof. Judge Bress emphasized that deception is the "central element" of any deceptive advertising claim, and there was no possible classwide showing on deception in this case. Materiality and damages findings that are "unmoored from any classwide showing of actionable wrongdoing" cannot independently justify certification. The district court's failure to weigh common issues against individualized ones, as required by Rule 23(b)(3), therefore, constituted reversible error.

Why This Matters for Defendants

Rusoff reinforces several defense-side principles that should translate well beyond the poultry aisle:

• Expert reliability is a gatekeeping tool at class certification. The Ninth Circuit reaffirmed that Daubert applies with full force at the certification stage, and unreliable expert methodology can undermine an entire theory of classwide liability.
• Deception must be proven classwide. Plaintiffs tying their deceptive advertising theory to a particular industry standard must demonstrate both (1) the standard exists as a dominant one; and (2) reasonable consumers associate the challenged representation with that standard. Failing either prong can defeat predominance.
• Materiality and damages cannot do the heavy lifting alone. In a deceptive advertising case, a class certification order that rests on secondary elements while the primary element of the claim - deception - remains individualized will not survive appellate review.
• The reasoning should travel well. Although Rusoff involves egg labeling, its holding should apply to any consumer class action where the plaintiffs allege that a product representation implies compliance with a purported industry standard.

For companies facing putative class actions based on contested product labeling claims, Rusoff provides a solid framework: challenge the reliability of the plaintiffs' experts early, press the predominance requirement rigorously, and remind the court that common questions on peripheral elements cannot compensate for a failure of classwide proof on the claim's central issue.

For more information about this case and its implications for class action litigation, please contact the authors or any attorney with FBT Gibbons' Class Actions team.