Trader Joe's Faces Lawsuit Over Alleged Low Caffeine in French Roast Coffee

Customers from several states have sued Trader Joe's, alleging that the grocery chain's French Roast Low Acid whole bean coffee has far less caffeine than consumers are led to believe. The lawsuit, filed in the Central District of California on April 24, 2026, claims the product contains roughly half the caffeine of standard coffee blends.

Multiple sources reported that independent testing revealed the coffee has 51 percent of the caffeine in Trader Joe's Dark French Roast and 45 percent of that in the House Blend. The plaintiffs argue that the absence of labeling indicating reduced caffeine levels deceives buyers who expect a fully caffeinated product.

Industry standards do not require caffeine content labels for regular coffee, but decaf and half-caff varieties are typically marked as such.

to the lawsuit, regular coffee typically contains 85 to 120 milligrams of caffeine per 8-ounce cup, while decaf has 2 to 5 milligrams and half-caff blends have 40 to 60 milligrams. Tests cited in the suit showed the French Roast Low Acid coffee falls into the half-caff range but is not labeled accordingly.

5 percent less than Puroast half-caff. The suit emphasizes that coffee drinkers rely on caffeine for energy, making the amount a key factor in purchasing decisions. Plaintiffs from California, Illinois, and New York seek class certification for those states where the product is sold.

It also demands unspecified monetary damages for affected customers. Trader Joe's did not immediately respond to requests for comment from multiple outlets. The plaintiffs contend that consumers cannot easily test caffeine levels before purchase, requiring scientific equipment beyond typical means.

They describe the labeling as false and deceptive advertising that forms a pattern of unfair business practices.

Legal Action Trader Joe's is also facing an unrelated lawsuit from a Portland woman who claims she found a fingertip from a rubber glove in the chain's orange juice. The suit expresses concern that human tissue might have contaminated the product. Multiple outlets reported on this separate case, which was filed amid the coffee allegations.

The coffee lawsuit highlights broader issues with product transparency in the grocery industry. Sources agreed that the French Roast Low Acid coffee is marketed without any indication of its reduced caffeine content.

The suit notes that full-caffeine coffees lack special labels, but reduced-caffeine options are explicitly marked. Plaintiffs argue this standard was violated, leading buyers to assume the product was fully caffeinated. Testing was conducted against Trader Joe's own blends and competitors to support the claims.

No contradictions appeared across sources regarding the caffeine measurements or the filing details. The case could affect how coffee products are labeled moving forward if successful.