When Testing Doesn’t Test:

The Shutdown of Viridis in Lansing

In a move that sent ripples across Michigan’s cannabis world, the Cannabis Regulatory Agency (CRA) ordered Viridis Laboratories’ Lansing location to shut down effective August 29, 2025, with its Bay City site to close by September 28, 2025 CRB Monitor NewsWDIVMJBizDaily. The lab’s three majority owners—Todd Welch, Gregoire Michaud, and Michele Glinn—were permanently banned from the Michigan cannabis industry CRB Monitor NewsWDIVDetroit Metro Times.

What Went Wrong?

The CRA found that Viridis consistently violated testing protocol: inflating THC potency readings, approving products that had failed microbial tests, and misidentifying mold—even labeling contamination as “mite poop” in some cases CRB Monitor NewsThe GanderDetroit Metro Times.

The consequences were severe: in 2021, regulators issued Michigan’s largest cannabis product recall—nearly 64,000 pounds worth an estimated $229 million—due to unreliable Viridis test results The GanderMJBizDaily.

Why This Matters

1. Trust and Transparency Are Essential
   Cannabis consumers rely on accurate lab results to make informed decisions. When a lab prioritizes profit over accuracy, the entire system loses credibility.
2. Industry Integrity Is Not Optional
   As CRA executive director Brian Hanna declared, “Viridis circumvented the rules… Their majority owners will never operate in this space again.” WDIVMJBizDaily. This settlement sends a strong signal: corners can’t be cut when it comes to safety and public trust.
3. A Reset for Michigan’s Cannabis Market
   Viridis once captured a massive share of Michigan’s testing volume—at times handling more than half of the state’s samples. Its collapse opens space for better practitioners and more rigorous science The GanderMJBizDaily. And to bolster oversight, the CRA plans to open its own reference testing lab in 2026 Moody on the MarketMJBizDaily.

The Importance of Clean Cannabis Testing

The closure of Viridis is more than a local scandal—it’s a turning point for regulated cannabis in Michigan and beyond:

Why Clean Testing Matters

• Public Safety: Accurate microbial testing prevents dangerous contaminants—yeast, mold, pesticides—from reaching consumers.
• Label Integrity: Consumers deserve to trust the THC and CBD levels on packaging. When potency is inflated, people can overconsume or make harmful choices.
• Equity in Business: “Lab shopping”—seeking labs that deliver higher potency results—creates unfair advantages and destabilizes responsible operators.
• Market Confidence: Reliable testing bolsters investment, consumer loyalty, and long-term credibility in the legal cannabis market.

What Consumers Can Do

• Ask Questions: Check whether your dispensary or brand has products tested by Viridis. If yes, you may want to consider another product or a different dispensary.
• Lean Local and Licensed: Support facilities using licensed, accredited labs—and be wary of potency numbers that seem too good to be true.
• Demand Transparency: Companies should be open about testing methodology, lab accreditation, results reporting practices, and dispensaries should be openly sharing test results if you ask for them.

Being a Michigan resident, changes in Lansing hit close to home. The Viridis scandal underlines why state-run testing oversight matters. With the CRA planning its own lab, we may soon have a more standardized benchmark—rooted in science, accountability, and trust.

The Viridis case marks a watershed moment for Michigan’s cannabis regulation: a reset demanding that testing labs prioritize science, accuracy, and ethics above profit. As the state transitions to greater oversight, we enter a new era—where clean cannabis isn’t just desirable, but mandatory.