Standard operating procedure
The written sequence for cannabis & cea. Adapt the concentrations and frequencies to your validated protocol; the sequence itself should not change.
- Dose irrigation and reservoir water continuously at low concentration
- Sanitise surfaces between every cycle
- Maintain footbath and entry control discipline
- Fog rooms during changeover after cleaning
- Verify concentration at emitters, not at the reservoir
- Document for state compliance records
Concentration reference
| Application | Concentration | Contact time | Verification |
|---|---|---|---|
| Food-contact surfaces | 50–200 ppm | Per protocol | Test strip, each shift |
| Environmental surfaces | 100–200 ppm | 1–5 minutes | Test strip, daily |
| Process and wash water | 50–100 ppm residual | Continuous | Meter, continuous |
| Fogging | 100–200 ppm | Per cycle | Test strip, per batch |
| Drains and biofilm | 200–500 ppm | 5–15 minutes | Test strip, per application |
Verification and records
Record date, time, location, measured concentration, measured pH where applicable, and the initials of whoever took the reading. Verify at the point of use rather than at the generator — the number that matters is the one at the surface, not the one at the machine.
Training
- Why precleaning is not optional, with the oxidiser-consumption explanation
- Correct concentration for each application, and how to check it
- Contact time discipline — visible wetness for the specified duration
- Application technique, including electrostatic coverage where used
- Record-keeping, and what an auditor will ask for
- Basic system operation: salt, alarms, when to escalate to maintenance
Validation
Swab before you change anything. Swab afterwards on the same schedule and the same sites. The comparison is your evidence, it is what an auditor finds persuasive, and it is what tells you whether the protocol needs adjusting before a problem arrives.
Escalation
Define in advance what happens when a swab fails or an outbreak is declared: which concentration, which frequency, which areas, and who authorises it. Deciding that during an incident is how incidents become events.