A proposed class action filed in January 2026, Williams v. Starbucks Corporation, is the Starbucks decaf coffee chemical lawsuit currently pending in federal court in Washington state. Two consumers allege the company sells decaffeinated coffee containing undisclosed traces of methylene chloride, benzene, and toluene, and separately accuse Starbucks of falsely marketing its coffee as “100% ethically sourced.” Starbucks has moved to dismiss, calls the allegations inaccurate, and no ruling, class certification, or settlement has occurred.1Seattle Times. Starbucks Sued Over Alleged Chemicals in Decaf Coffee, Farm Violations
What the Lawsuit Alleges
Jennifer Williams of Ferndale, Washington, and David Strauss of Irvington, New York, filed the complaint on January 13, 2026, in the U.S. District Court for the Western District of Washington. The case number is 2:26-cv-00112, and it is assigned to Judge Michelle L. Peterson. The plaintiffs are represented by Hagens Berman.1Seattle Times. Starbucks Sued Over Alleged Chemicals in Decaf Coffee, Farm Violations
The complaint has two threads. The first concerns chemicals. Plaintiffs cite independent testing conducted in January 2025 that reportedly detected three volatile organic compounds in Starbucks’ Decaf House Blend medium roast: methylene chloride at 22 parts per billion, benzene at 28 parts per billion, and toluene at 87 parts per billion. The suit describes these as industrial solvents not typically associated with food production and alleges Starbucks committed “deceptive omissions” by failing to disclose their presence.2Daily Coffee News. Lawsuit Accuses Starbucks of Misleading Buyers on Sustainability and Chemical Content
The second thread targets ethical-sourcing marketing. The complaint alleges that farms certified under Starbucks’ C.A.F.E. (Coffee and Farmer Equity) Practices program have been linked to forced labor, child labor, wage theft, and unsafe working conditions in Brazil, Guatemala, and China, and that Starbucks continued certifying those farms despite being notified of violations.1Seattle Times. Starbucks Sued Over Alleged Chemicals in Decaf Coffee, Farm Violations
The proposed class covers consumers in Washington and New York who purchased Starbucks coffee products on or after January 1, 2016. Plaintiffs seek a jury trial, restitution, and an injunction blocking Starbucks from marketing its coffee as ethically sourced unless the claims are accurate.1Seattle Times. Starbucks Sued Over Alleged Chemicals in Decaf Coffee, Farm Violations
One important limit sits inside the complaint itself. As reporting by Daily Coffee News observed, the plaintiffs do not allege that Starbucks violated federal food-safety regulations, exceeded FDA residue limits, or omitted anything federal law requires it to disclose. The claim rests on state consumer-protection theories about deceptive omissions.2Daily Coffee News. Lawsuit Accuses Starbucks of Misleading Buyers on Sustainability and Chemical Content
Why Solvents Show Up in Decaf
Methylene chloride is the most widely used solvent in the coffee industry’s decaffeination process.3Chemical & Engineering News. Is Decaffeinated Coffee Safe to Drink There are two main solvent-based approaches. In the direct method, green coffee beans are washed with methylene chloride. In the indirect method, the beans are soaked in hot water and the caffeine is then extracted from that water using the solvent. In either case, the beans are steamed and roasted at high temperatures afterward to remove residual solvent.
Starbucks has said it uses the Direct Contact Method for most of its decaf products, steaming beans, washing them with methylene chloride, and then roasting at over 400 degrees Fahrenheit. The company has maintained that roasting removes the processing chemicals entirely, claiming “absolutely zero methylene chloride” remains in the finished product. Two Starbucks products use the chemical-free Swiss Water Process instead: the Decaf Komodo Dragon Blend and VIA Instant Decaf Italian Roast.4Tasting Table. How Starbucks Decaf Coffee Is Made
How the Alleged Levels Compare to Legal Limits
The FDA permits methylene chloride in coffee decaffeination under 21 CFR 173.255, with a residue limit of 10 parts per million in roasted decaffeinated coffee.5CNN. Decaf Coffee Methylene Chloride Cancer Wellness The levels alleged in the Williams complaint are measured in parts per billion. Ten parts per million equals 10,000 parts per billion. The 22 ppb of methylene chloride cited by plaintiffs sits far below that ceiling.
The complaint characterizes the EPA as deeming methylene chloride “unsafe at any level,” but the FDA regulation governing coffee permits residues well above the amount alleged.5CNN. Decaf Coffee Methylene Chloride Cancer Wellness The research does not identify any FDA regulatory limit for benzene or toluene residues specifically in decaffeinated coffee.
Independent testing by the Clean Label Project found traces of methylene chloride in several popular decaf brands, with detected levels of 1.4, 3.5, and 8.9 ppm across different products, all below the FDA limit.5CNN. Decaf Coffee Methylene Chloride Cancer Wellness Solvent decaffeination is an industry-wide practice, and the Williams suit does not appear to be part of a broader wave of similar litigation against other coffee companies.
Starbucks’ Response and the Status of the Case
Starbucks has publicly called the allegations “inaccurate,” saying they “misrepresent both our sourcing practices and the integrity of our Coffee and Farmer Equity (C.A.F.E.) Practices program.”2Daily Coffee News. Lawsuit Accuses Starbucks of Misleading Buyers on Sustainability and Chemical Content
The case has moved through procedural motions rather than merits. Starbucks filed an initial motion to dismiss on March 23, 2026, and the court stayed other deadlines while briefing was underway.6CourtListener. Williams v. Starbucks Corporation Docket The plaintiffs then chose to amend rather than oppose. A stipulated order filed April 9, 2026, allowed them to file a First Amended Complaint by April 23, 2026, and reset the briefing schedule. Starbucks filed a motion to dismiss the amended complaint on May 21, 2026. Plaintiffs’ opposition was due June 19, and Starbucks’ reply July 10.7Justia. Williams et al v. Starbucks Corporation, Stipulated Order
As of mid-2026, the court has not ruled on the motion. The case remains active. No class has been certified, no settlement has been reached, and no payout has been determined. Consumers cannot currently file a claim in this case.
The EPA’s 2024 Methylene Chloride Ban Does Not Cover Coffee
Public alarm about methylene chloride grew in 2024 when the EPA finalized a rule under the Toxic Substances Control Act prohibiting the manufacture, processing, and distribution of methylene chloride for all consumer uses and most industrial and commercial uses.8Federal Register. Methylene Chloride Regulation Under the Toxic Substances Control Act The rule rests on a 2020 risk evaluation that found methylene chloride presents an “unreasonable risk of injury to human health” under nearly all evaluated conditions of use, citing acute hazards, liver damage, and cancer risk.9EPA. Risk Management for Methylene Chloride
The rule does not reach food processing. The EPA’s compliance guide states that substances excluded from TSCA’s definition of “chemical substance,” including food and food additives as defined under the Federal Food, Drug, and Cosmetic Act, are not covered.10EPA. Methylene Chloride Compliance Guide Coffee decaffeination remains governed by the FDA’s existing 10 ppm residue limit, not by the EPA’s ban.
Earlier Chemical Disputes Involving Starbucks
The Williams case is not the first time Starbucks has faced legal or public pressure over chemicals. In 2015, a customer named Cheryl Kingery filed a $2 million suit alleging she was served a drink containing a coffee-machine cleaning product called Urnex at a Clinton, Utah, location in 2012, and that the solution caused burns, nerve damage, and Burning Mouth Syndrome. Starbucks said it was investigating the claims.11Eater. Starbucks Lawsuit Coffee Cleaning Solution
Starbucks was also a defendant in the long-running Council for Education and Research on Toxins (CERT) v. Starbucks, et al., a California Proposition 65 case over acrylamide, a chemical that forms naturally when coffee beans are roasted. A 2014 ruling initially required coffee companies to post cancer warnings. In 2019, California’s Office of Environmental Health Hazard Assessment adopted a regulation stating that chemical exposures created by roasting or brewing coffee “do not pose a significant risk of cancer.” A judge granted summary judgment for the coffee companies in 2020, a California appeals court upheld the regulation in 2022, and the state Supreme Court declined to review the case in February 2023.12KIRO 7. Starbucks Sued Over 100% Ethical Sourcing Claims, Undisclosed Chemicals in Decaf Coffee Coffee no longer requires Proposition 65 cancer warnings in California.
Separately, in 2014 food blogger Vani Hari drew attention to Class IV caramel coloring in the Starbucks Pumpkin Spice Latte and its byproduct 4-methylimidazole (4-MEI), which California added to its Proposition 65 list in 2011.13Snopes. Pumpkin Perfidy The FDA has stated it has “no reason to believe that there is any immediate or short-term danger presented by 4-MEI at the levels expected in food from the use of caramel coloring.”14FDA. Questions and Answers About 4-MEI Starbucks reformulated the Pumpkin Spice Latte in 2015, removing Class IV caramel coloring from the sauce and whipped cream, coloring the sauce with fruit and vegetable juice, and adding real pumpkin puree.15PIX11. Starbucks Pumpkin Spice Latte Secret Ingredients Revealed That controversy involved a different product and a different chemical than the pending decaf case.