Notice | Massachusetts Cannabis Control Commission Public Health and Safety Advisory: Contaminated and Potentially Contaminated Marijuana Products | August 6, 2025

August 6, 2025

The Massachusetts Cannabis Control Commission (“Commission”) is issuing this public health and safety advisory due to the identification of contaminated and potentially contaminated Marijuana flower and Marijuana Products (“the affected products”) that were tested between April 1, 2024 and April 15, 2025 and noted in the Summary Suspension Order (“SSO”) issued on June 30, 2025. In the Order, the Commission identified 544 lab samples that previously failed Total Yeast and Mold testing.

Consumers and Patients are urged to check the labels of any adult- or medical-use Marijuana and Marijuana Products in their possession to determine whether those products were tested during the relevant period identified above. If so, please refer to the Commission’s Public Health and Safety Advisories portal for more information about impacted Metrc Package Tag/Batch numbers. For more information on how to locate a batch number and testing date on a Massachusetts marijuana product label, please review this Understanding Labels flyer and video.

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

Consumers and Patients who experience adverse health effects after consuming the affected products should seek medical attention and notify the Marijuana Retailer, Medical Marijuana Treatment Center, or Marijuana Delivery Operators.

Consumers and Patients that possess any of the affected products may destroy them or return them to the licensee where they were purchased for disposal and/or contact them for more information. Additionally, to promote public health and safety, licensees should follow their established policies and procedures to recall any affected products, as applicable.