Processing Lab Safety: More Than the Equipment

Safe equipment. Thoughtful facility design. Trained people. A culture that refuses shortcuts.

The fatal explosion at a cannabis processing facility in Sand Springs, Oklahoma, is a painful reminder of what is at stake in our industry. News On 6 reported that two people lost their lives.[3] Our thoughts are with their families, coworkers, and everyone affected.

We will not speculate about the cause or use a tragedy to promote a product. But we do believe it calls for a serious conversation about how our industry protects the people doing this work.

At Xtractor Depot, our position is simple: no production target is worth someone not making it home.

A safer processing lab is not created by buying one piece of equipment, passing one inspection, or hanging a safety poster. It requires equipment, facilities, procedures, oversight, and people working together—every shift.

Start with properly designed and reviewed equipment

Safety belongs in the purchasing decision, not on a list of upgrades for later.

Before putting an extraction system into service, ask for documentation showing its intended use, operating limits, solvent compatibility, and applicable compliance pathway. Involve qualified engineers and the local authority having jurisdiction (AHJ) early. The 2024 International Fire Code provides pathways involving listed extraction equipment or specific-use approval supported by professional review and a technical report; the applicable requirements depend on the locally adopted code and amendments.[5]

For an equipment review, ask:

• Does the documentation cover this exact model and installed configuration?

• Are vessels, hoses, seals, valves, pumps, and fittings appropriate for the intended solvent, pressure, and temperature?

• Are pressure protection, emergency controls, and maintenance requirements documented?

• Have modifications been reviewed before the equipment returns to service?

An engineering report, an electrical listing, and approval of the installed facility are not interchangeable. A document for one part of the system does not establish compliance for everything around it.[1][5]

In a C1D1 area, the details matter

A Class I, Division 1 designation is not a general safety sticker. Electrical equipment and wiring must be suitable for the classified location, including the specific gas or vapor and applicable temperature limitations.[1]

That review extends beyond the extractor to lights, motors, pumps, switches, receptacles, instruments, wiring, and portable electrical devices. Oregon OSHA specifically calls out cellphones among equipment that must be appropriately rated in these locations.[2]

A useful rule for the team: if its suitability has not been verified, do not bring it into the classified area.

Do not assume that “industrial,” “sealed,” or “waterproof” means suitable for a hazardous location. Nor does “explosion-proof” describe every acceptable protection method; properly designed intrinsically safe systems are another approach recognized by OSHA.[1]

Have qualified professionals determine the classification boundaries and verify the complete installation. Not every processing room has the same hazards or requires the same classification.[1][5]

Design the facility around the process

Equipment cannot compensate for a room that was never designed for the work being performed.

Facility planning should address solvent quantities and storage, ventilation and makeup air, exhaust discharge, ignition sources, emergency access, exits, and the separation of incompatible activities. The IFC addresses extraction and post-processing hazards, ventilation, emergency shutoffs, and gas detection as parts of the facility—not just the extraction machine.[5]

Review the entire workflow, including solvent handling, recovery, post-processing, cleaning, and maintenance. Moving a task outside the extraction booth does not establish that it is safe to perform there.

The design must also reflect the actual process. Hydrocarbon and ethanol operations present flammability concerns; carbon dioxide extraction introduces pressure and exposure hazards even though CO₂ is not a flammable solvent.[2]

“We have always done it this way” is not a design review.

Gas detection must be part of a working safety system

A detector on the wall is not the same as a commissioned protection system.

The IFC addresses gas detection, alarms, required shutdown actions, and ventilation interlocks for applicable extraction processes.[5] Ask your qualified design and installation team to document:

• Which gases the system detects and where sensors belong.

• The required alarm, shutdown, and ventilation responses.

• What happens when a sensor, controller, or ventilation system fails.

• How calibration, functional testing, and maintenance will be performed.

• What employees must do when an alarm sounds.

Setpoints, sensor placement, and interlocks must follow the approved design, applicable code, and manufacturer instructions—not a generic online recommendation. Detection does not replace containment, ventilation, electrical compliance, or trained operators.

Write SOPs for abnormal conditions—not just successful batches

A production recipe describes how to make a product. A safety-focused standard operating procedure also explains when not to start, when to stop, and who can authorize a restart.

We recommend written procedures covering pre-start checks, normal operation, shutdown, solvent handling, cleaning, maintenance, alarm response, evacuation, and safe return to service. Procedures should match the installed equipment and be reviewed when the process changes.

Training should include demonstrated competence, not just a signature on a form. Oregon OSHA advises that extraction equipment be operated only by highly trained people who can demonstrate proficiency and understand safe operating procedures.[2]

Employees should not have to improvise during a suspected gas release. The emergency plan should direct them to evacuate and follow established response procedures—not troubleshoot inside a potentially hazardous atmosphere.

Treat compliance as an ongoing responsibility

A business license is not a substitute for fire, building, mechanical, electrical, or workplace-safety compliance. Extraction equipment and facilities require the applicable approvals, and the installed system must match the reviewed design.[2][5]

Keep approved plans, equipment documentation, operating manuals, inspection records, training records, and corrective actions accessible. Before changing equipment, solvents, operating conditions, or the room layout, determine whether engineering review or updated approvals are required.

Requirements vary by jurisdiction and adopted code edition. Engage the local fire official, building department, and qualified professionals before making changes—not after installation.

Build a culture where stopping is the right decision

The clearest test of a safety culture is what happens when someone says, “Something is wrong.”

Are they thanked for speaking up—or pressured to finish the batch?

OSHA recommends empowering workers to request or initiate a temporary shutdown when they believe an activity is unsafe, and encouraging participation without retaliation.[4]

For owners and managers, that means making specific commitments:

• Anyone can raise a concern or call for a safety stop without punishment.

• Alarms and protective systems are not bypassed to maintain production.

• Near misses lead to corrective action, not silence.

• Maintenance and training receive real time and resources.

• Unresolved hazards stay visible until someone verifies they are corrected.

The standard leadership accepts under pressure becomes the standard the team follows.

A practical place to start

At your next safety meeting, ask:

1. Can we produce the documentation for our exact equipment and installation?

2. Have we verified the suitability of every electrical device in each classified area?

3. Do we have current evidence that ventilation, detection, alarms, and required interlocks work?

4. Can every operator explain when to stop and what to do during an emergency?

5. Have changes to the process been reviewed before use?

6. Would an employee feel safe telling management to stop production today?

Treat an unanswered question as a follow-up item with an owner and a deadline—not a box to check later. These questions are a starting point, not a substitute for a professional safety assessment.

Xtractor Depot’s commitment

We want Xtractor Depot to be a useful resource for operators making informed decisions about equipment, supplies, and the questions to bring to qualified safety professionals.

Safety starts with equipment designed for the job. It depends on a facility built for the process, procedures people understand, oversight that remains current, and leaders who refuse to trade people’s well-being for output.

The most important result of any production day is that everyone goes home safely.

This article provides general educational information, not an engineering design, code determination, or operating procedure. Use qualified professionals and the relevant authorities to evaluate your specific facility. Referenced model codes and state guidance do not establish the requirements in every jurisdiction.

Sources

[1] https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.307
[2] https://osha.oregon.gov/essentials/cannabis/processors/pages/default.aspx
[3] https://www.newson6.com/tulsa-oklahoma-news/how-does-marijuana-extraction-work-oklahoma-processor-explains-safety-after-deadly-sand-springs-explosion
[4] https://www.osha.gov/safety-management/worker-participation
[5] https://codes.iccsafe.org/content/IFC2024V2.0/chapter-39-processing-and-extraction-facilities