Massachusetts Cannabis Control Commission Alerts the Public About Potentially Contaminated Products

Follow-up testing ordered by the Commission found products exceeded testing thresholds for certain contaminants

WORCESTER –The Cannabis Control Commission (Commission) is informing consumers and patients about new health and safety concerns regarding marijuana products produced by two separate licensees that may have been sold recently by Marijuana Establishments and Medical Marijuana Treatment Centers.

In one instance, marijuana products passed required testing between March and June 2024, but additional compliance testing ordered by the Commission found yeast and mold and coliforms above acceptable limits according to Commission regulations. The potentially contaminated products that failed compliance testing were sold by Marijuana Retailers and Medical Marijuana Treatment Centers between May 31, 2024, and Jan. 23, 2025.

In another instance, marijuana products passed required testing between August and September 2024, but additional compliance testing ordered by the Commission found yeast and mold above acceptable limits according to the Commission regulations. The potentially contaminated products that failed compliance testing were sold by Marijuana Retailers between Sept. 18, 2024, and Jan. 30, 2025.

The Commission has taken steps to prevent further sales of the potentially contaminated products through Metrc, a third-party regulatory cannabis system to track every plant from seed to sale in Massachusetts.

The Commission requires all licensees to test Marijuana and Marijuana Products for their cannabinoid profile and contaminants of concern. Thresholds for Total Yeast and Mold can be found in Exhibit 6 of the Protocol for the Sampling and Analysis of Finished Marijuana Products and Marijuana Products for Marijuana Establishments, Medical Marijuana Treatment Centers, and Colocated Marijuana Operations. Massachusetts maintains higher yeast and mold thresholds than many other states with Adult-Use marijuana.

To date, no related illnesses have been reported to the Commission. A full list of products and locations where they were sold can be found here and here. All marijuana offered for retail sale in Massachusetts must include a label on the product packaging that indicates the batch number. Consumers and Patients should check their product label for the batch numbers under “Product Information.”

Consumers and Patients that possess any of the affected products may destroy them or return them to the store or treatment center where they were purchased for disposal. Contact the Marijuana Establishment or Medical Marijuana Treatment Center where the products were purchased for more information.

Additional information is available by visiting the Commission’s “Enforcement Announcements” page at  MassCannabisControl.com, by contacting the Commission by phone (774-415-0200) or email (Commission@CCCMass.com), or following the agency on Facebook and X.

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