Massachusetts Warns of Contaminated Marijuana Products Sold Over Eight Months
State officials discovered dangerous mold contamination in marijuana products distributed across Massachusetts between late May 2024 and January 2025. The Cannabis Control Commission quickly alerted the public to address safety concerns.
Lab tests found dangerous mold levels in multiple product categories. While initial testing showed these products passed safety checks between March and June 2024, follow-up tests revealed mold exceeding legal limits in pre-rolls and loose flower.
The contaminated products reached stores in two waves. The first batch circulated from May to January. Another round of tainted products emerged between September and January, making their way through several dispensaries.
Officials stopped additional sales using Metrc’s tracking system. Though the products were widely distributed, no illnesses have been connected to the contaminated items so far.
Customers should look closely at their product labels. Review the “Product Information” section to identify potentially unsafe items. You can dispose of these products or return them to where you bought them.
The state maintains strict marijuana quality standards. Every batch must pass both safety and potency testing before reaching stores.
Massachusetts has some of the toughest oversight among states with legal marijuana. Their regulations set clear safety requirements that all products need to meet.
Officials are actively investigating how the contamination happened. Additional testing will help determine when these products can return to market.
The state’s marijuana website provides a complete list of affected products and stores. Given how long this went on, officials recommend all recent marijuana buyers check if their purchases were affected.