Drains in food-manufacturing plants are critical control points. In South Africa, proper drain hygiene is a defined requirement under SANS 10049 and HACCP, which expect sites to clean, sanitise, verify and record the status of drains on a set schedule.
Ecowize helps facilities translate those requirements into a practical, auditable routine. Starting with correctly identifying each drain and where it discharges (sewage, storm water or an effluent plant), then applying a validated clean-rinse-sanitise method with records that stand up to audit.
When drains are neglected they can harbour Listeria and other microbes, create odours, attract pests and cause operational downtime.
Why drains matter for food safety and audits
Drains collect residues and moisture that support biofilm growth. If they are not cleaned to method, aerosols and splash can re-contaminate floors and nearby contact areas, undermining sanitation outcomes and triggering repeat audit findings.
Auditors expect to see a documented procedure, proof that chemicals are approved for the application, and logs that show who cleaned which drain, when, how and with what checks. Treating drain care as part of the Food Safety Management System, protects compliance, product integrity and line uptime.
Identify the drain and its discharge route first
Start by confirming whether you are working on a floor, trench, gully or point drain, and record where it leads. Drains connected to storm water or an effluent plant may have different site rules for chemical use and waste handling.
Capturing the drain type and discharge route on your log sheet improves traceability and helps engineering resolve recurring issues at source.
The validated method: nine steps that stand up to audit
1) Preparation and safety
Operators wear gloves, goggles, apron and non-slip gumboots, and place wet-floor signage. Confirm all chemicals are approved for use in food facilities and handled according to their safety data sheets. Add the task to the Master Sanitation Schedule and open the log.
2) Remove covers and gross debris
Lift the grate with the correct tool, remove visible particles and dispose of waste per site rules. This reduces load and improves chemical contact in later steps.
3) Initial rinse with low aerosol
Flush with hot water or a hose to remove loose soil but avoid high-pressure spraying directly into the drain, which can create aerosols and spread contamination.
4) Apply foaming cleaner or degreaser
For routine cleaning, apply Eco-Clean FA15. For deep cleaning or heavy organic load, apply Eco-Clean FA30. Coat the lip, walls, trap and upstream pipework and allow full label dwell time so fats, proteins and biofilms are broken down before scrubbing.
5) Scrub and agitate
Use drain-dedicated, colour-coded brushes or designated scrubbing pads to work the cleaner into the lip, walls and trap. Single-use pads should be discarded immediately after use to prevent cross-contamination.
6) Rinse thoroughly with clean water
Rinse until foam and loosened residues are cleared. This prevents chemical carryover that can neutralise your sanitiser.
7) Inspect and escalate where needed
Check that surfaces are free of debris, slime and fat. If film remains, repeat the cleaning step with an acid detergent such as Eco-Clean AD50, then rinse well.
8) Final rinse and sanitise
Rinse to remove last traces of detergent. Sanitise all internal surfaces with Eco-San AF8 (peracetic-based), ensuring full wetting and label contact time. Allow to air dry unless the label specifies otherwise.
9) Reassemble, verify and record
Replace the grate and confirm free flow. Record date, time, drain ID, type and discharge route, products used, dilutions, contact times, the operator’s name and any corrective actions. Where risk warrants it, add simple verification such as a visual photo record, protein swab or ATP result according to your hygiene plan.
Best practice that prevents repeat issues
Clean high-risk drains at the end of each shift or daily, based on production and climate. Keep drain tools colour-coded and dedicated so they never touch food contact surfaces (a “drain champion” model improves accountability on larger sites).
Include drains in the Master Sanitation Schedule for dry manufacturing areas too, as stagnant lines can blow contaminated air back into processing rooms. Train operators regularly so the method, measurements and records are performed the same way on every shift.
Where Ecowize helps
Standards set the requirements. Ecowize helps teams do it right, every time. We provide the validated chemicals (Eco-Clean FA15, Eco-Clean FA30, Eco-Clean AD50, Eco-San AF8) with application guidance, on-site training for operators and supervisors, and audit-ready record templates that capture drain type and discharge route.
Our specialists tailor frequencies by risk zone, set acceptance criteria, and build simple verification into your routine so results are visible and defensible at audit. We also align engineering and hygiene actions to address root causes like: airflow, grading and trapped solids, reducing rework and downtime.
Conclusion
Proper drain cleaning is not optional. It is a core hygiene control under SANS 10049 and HACCP that protects food safety, prevents pests and odours, and keeps audits smooth. By identifying drain type and discharge route, applying a validated nine-step method with the right Ecowize products, and recording each action, facilities turn a common risk into a controlled process.
Make drain hygiene a controlled, audit-ready process. Ask Ecowize to map your drains and discharge routes, implement a validated nine-step method, and supply Eco-Clean and Eco-San with operator training and record templates