Minnesota’s cannabis testing laboratory market is growing alongside the state’s cannabis industry. This guide helps cultivators and manufacturers evaluate and work effectively with licensed testing labs. For the complete testing transport guide, read The Complete Guide to Cannabis Testing Transport in Minnesota.
What Makes a Cannabis Testing Lab Licensed in Minnesota
A licensed cannabis testing laboratory in Minnesota holds a specific license from the OCM authorizing them to perform mandatory cannabis testing. OCM licensing requirements for testing labs cover: ISO 17025 accreditation or equivalent, specific equipment and method requirements for the mandated test panels, chain-of-custody protocols, analyst qualifications, data integrity and reporting standards, and secure sample storage and disposal procedures.
Before working with any testing lab, confirm their OCM license status. An unlicensed lab cannot produce certificates of analysis that the OCM will accept — testing with an unlicensed lab means your product is legally untested regardless of the results you received.
Location: Most Labs Are in the Twin Cities
Minnesota’s licensed cannabis testing lab market is concentrated in the Minneapolis and St. Paul metro area. This is consistent with other state cannabis markets — testing labs require significant capital investment, and the Twin Cities provide the talent base and infrastructure these operations require. For outstate cultivators and manufacturers, most sample transport involves a run to the Twin Cities metro area. Operators based in St. Cloud and central Minnesota have relatively short transport windows to metro-area labs.
Evaluating a Cannabis Testing Lab
Accreditation status. Confirm current ISO 17025 or equivalent accreditation.
OCM license. Verify their OCM license number and current status independently.
Turnaround times. Ask about standard and expedited turnaround times for each test panel you’ll need.
Intake procedures. Understand their sample intake procedures before your first submission — some labs have specific container requirements or labeling formats.
Communication and reporting. How do they communicate test results? Is there a portal to track your sample’s progress?
Failed test consultation. A lab that proactively helps you understand why a batch failed and what remediation options exist is a more valuable partner than one that simply issues a failing COA and moves on.
The Lab-Transport Partnership
Your relationship with your testing lab is most productive when supported by reliable, professional sample transport. Labs that consistently receive well-documented, properly packaged samples with clean chain-of-custody paperwork process them more efficiently and develop a clearer picture of your operation’s quality standards over time.
Going Green Transport runs sample transport to Twin Cities labs from facilities across Minnesota. View all service areas on our Minnesota cannabis transport locations page.