EC Cleaners Network · Food Production · Factories · Bakeries · Production Kitchens
In production, the wrong shutdown window can cost more than the maintenance work itself.
Food factories can contain grease extract from cooking operations, general building ventilation and process local exhaust ventilation under the same roof. EC Cleaners Network helps engineering, facilities and hygiene teams organise the commercial requirement, identify which workstream is actually involved and prepare for independent specialist delivery without blurring those systems together.
Tell us which line, process or ventilation system is involved
Send the site, production area, process, what has triggered action, the available shutdown window and any drawings, reports, quotations, photographs or previous maintenance information. If the system type is unclear, provide what you have rather than assuming it is TR19 work.
First decision
Which extraction or ventilation system are you actually dealing with?
A food factory can contain several systems that all move air but perform very different jobs. Identifying the system before choosing the contractor reduces the risk of applying the wrong specification, competence or close-out method.
Grease extract from a cooking process
Industrial or commercial cooking areas can generate grease-laden extract air. Where the system falls within commercial kitchen extraction, TR19® Grease may be relevant to the grease-related fire-risk workstream.
General building ventilation
Supply and extract ventilation serving welfare, offices, production support or other non-process areas is a separate hygiene workstream.
Process LEV or contaminant control
Where extraction is intended to capture harmful dust, mist, fumes or gas at or near source, HSE treats it as local exhaust ventilation with its own design, commissioning, use, maintenance and testing requirements.
Access or incomplete-work problem
High-level plant, ceilings, production lines or restricted hygiene areas may have prevented part of the system being reached on a previous attendance.
Do not use “TR19” as a generic label for every factory extraction system.
Start with the operational trigger
What has brought the issue onto the engineering or hygiene programme?
A grease-extract system may be due for cleaning
Use the cooking process, operating hours, maintenance history and condition evidence rather than relying only on a calendar date.
A cooking extract is not performing properly
Weak pull, smoke or excessive heat should be investigated before cleaning is assumed to be the whole answer.
An insurer, fire-risk assessor or audit has raised action
Keep the original recommendation connected to the contractor instruction and returned evidence.
Part of the system is inaccessible
A known high-level or line-dependent access restriction should be turned into a separate remedial action before the next shutdown is consumed by the same problem.
You manage several factories or production sites
Central control needs to distinguish system type, production area, due date, contractor, access status and open technical actions.
Why food production is different
The maintenance task has to fit the production process
A factory may contain ovens, fryers, baking equipment, cooling, packing, high-level services, general HVAC, process extract and staff-catering facilities under the same roof. The work cannot be planned properly until the affected area, process and shutdown conditions are understood.
Production shutdown
Access may depend on a planned line stop, engineering window, hygiene shift or full site closure.
Hygiene zoning
Contractor routes, protective clothing, tools and working methods may need to fit the site’s own contamination-control procedures.
High-level services
Ductwork, fans and plant may sit above lines, chillers, conveyors or equipment that cannot simply be moved.
Permits and isolation
Engineering work may depend on electrical, mechanical, process or other site-specific isolation and permit arrangements.
Restart pressure
Production can have a fixed restart point with very little tolerance for incomplete work or an unresolved access issue.
Audit trail
Engineering, hygiene, food-safety, health and safety and insurance teams may all need different information from the same maintenance event.
Shutdown planning
Use the engineering window for delivery, not for discovering preventable site restrictions
Extraction and ventilation work often competes with deep cleaning, refrigeration, electrical maintenance, line modifications, inspections and production changeovers for the same shutdown period.
- Before quotation. Identify the system, process area, known plant route, previous reports, access restrictions and likely technical workstream.
- Before attendance. Confirm shutdown, permits, hygiene entry requirements, isolations, access equipment, roof or plant access and site supervision.
- During the work. Escalate unexpected contamination, inaccessible sections or findings to the correct engineering, hygiene or safety contact while the window remains open.
- Before restart. Confirm the contractor area is handed back appropriately and keep exclusions, testing requirements or outstanding actions visible to the site team.
Food-safety interface
Contractor work has to fit the site’s hygiene and contamination controls
The Food Standards Agency’s MyHACCP guidance is aimed at food manufacturers and supports food-safety management based on HACCP principles. Its prerequisite guidance includes preventative maintenance, cleaning and disinfection, equipment cleaning and maintenance, utilities, contamination control and requirements for contractors and visitors to comply with relevant personal-hygiene controls.
Those controls remain part of the food business’s own food-safety management system. A TR19 report or ventilation clean does not replace HACCP or the site’s wider hygiene controls.
Local exhaust ventilation
Process LEV is an exposure-control system, not just another dirty duct
HSE’s HSG258 guidance covers the principles of deciding on, designing, commissioning and testing effective local exhaust ventilation. It also addresses employer and supplier responsibilities, competence, hoods, ducts, air movers, air cleaners, documentation, checking and maintenance.
Food and drink manufacturing can also involve flour dust, ingredient dust, mist, fumes and other airborne contaminants. Where extraction is part of controlling worker exposure, the technical requirement should remain under the appropriate LEV and occupational-hygiene route.
Do not reclassify process LEV as TR19® Air simply because the system has a fan and ductwork.
Cooking processes
Where the system genuinely is grease extract, the kitchen questions still matter
A factory cooking line or production kitchen can still have the same basic grease-extract questions as a commercial kitchen, but the operating hours, production load and shutdown environment may be very different.
How often should it be cleaned?
Use current operating hours, cooking processes, grease accumulation and previous evidence.
Does it need cleaning now?
Use current evidence and condition rather than relying only on the planned shutdown date.
Is poor performance the real issue?
Weak pull, smoke and heat can involve fan, controls, replacement air or another technical problem.
Performance problems
Do not keep cleaning a cooking extract if the unresolved symptom points elsewhere
Extractor fan not pulling properly
The fan appears to run but capture is weak.
Production area too hot
Where the issue relates to a catering or cooking extract, excessive heat may point to a ventilation-performance issue rather than hygiene alone.
Fire and insurer actions
Keep third-party requirements connected to the actual system and process
An insurer, fire-risk assessor, auditor or consultant may have raised the action for a specific reason. Preserve that wording so the contractor scope and close-out evidence can be checked against the original requirement.
Access and high-level work
Production equipment can make a technically simple section difficult to reach
Ductwork may pass above live production lines, enclosed plant, ceilings, conveyors, chillers or high-level structures. If access depends on a shutdown, scaffold, MEWP, guarding removal or other enabling work, that requirement should be visible before the contractor arrives.
Evidence and restart
Close-out has to be clear before the production area returns to normal use
The site should be able to see what system was worked on, what was completed, what could not be reached, what report or test evidence is still due and whether another engineering or technical action remains open.
System and area
Identify the factory, line, process area and relevant extract or ventilation system.
Completed work
Separate physical cleaning or maintenance from wider technical issues that remain unresolved.
Hygiene hand-back
Keep the contractor’s completion separate from any site-specific cleaning, inspection or release process required before production restart.
Outstanding actions
Assign access remediation, LEV testing, engineering review, report clarification or other follow-up to the correct owner.
Manufacturing groups and portfolios
Central control needs system type as well as site status
A manufacturing group can inherit different factories, line layouts, contractors, terminology and report formats. A useful portfolio view distinguishes grease extract, general ventilation, LEV and other specialist systems instead of putting every air-related action into one generic ventilation-cleaning category.
Compliance register
Record the site, production area, system type, due date, contractor, report and open action.
Portfolio evidence QA
Check whether reports and certificates actually match the factory, system, work date and completed scope.
Exceptions
Separate overdue work, access restrictions, incomplete evidence, LEV review and other technical actions.
Changing contractors
Preserve system history, hygiene constraints, access notes and open actions when suppliers change.
Newly acquired sites
Bring inherited systems, reports and contractor information into the group’s own estate and engineering process.
Procurement
Standardise commercial requirements and evidence expectations while keeping the technical route appropriate to each system.
Historic industrial context
Food-distribution and warehouse work in Totton
The historic EC Cleaners archive includes work at a food-distribution and warehouse environment in Totton. It provides genuine context for industrial access, high-level work and hygiene-sensitive premises without being relabelled as a verified food-manufacturing ventilation case study.

Historic EC Cleaners project imagery is used as industrial and food-distribution context only. It is not presented as a current Search and Submit Ltd contract, a verified food-manufacturing ventilation project or a current technical assessment.
Food-production extraction and ventilation: frequently asked questions
Is all factory extraction covered by TR19?
No. A food-production site can contain grease-laden cooking extract, general building ventilation and process local exhaust ventilation. The correct technical route depends on the system and the hazard or maintenance issue being controlled.
What is the difference between TR19 Air and LEV?
TR19 Air concerns cleanliness and hygiene management of general ventilation systems. Local exhaust ventilation is an engineered control used to capture harmful airborne contaminants at or near source and has its own design, commissioning, maintenance and testing requirements.
What should be checked before specialist contractors enter a food-production area?
The site should establish the system involved, production shutdown, hygiene zoning, personal protective requirements, contractor route, permits, isolations, access equipment, contamination controls and hand-back arrangements.
What if a cooking-line extract system is not performing properly?
Weak pull, smoke, excessive heat or other performance symptoms should not automatically be treated as cleaning issues. Fan, controls, replacement air, process changes or another technical issue may need competent investigation.
How should a manufacturing group manage several factories?
Use a central register that records each site, production area, system type, contractor, due date, report, access issue, technical workstream and outstanding action separately.
Can EC decide whether an industrial extract system is LEV?
No. EC can help organise the supplied information and identify that the classification needs competent technical review, but it does not design, commission, test or technically classify process LEV systems.
Have an extraction, ventilation or access issue at a food-production site?
Send the site, production area, process, what has triggered action, the available shutdown window and any existing drawing, report, quotation or photographs. If the system type is unclear, say so. EC will not relabel process LEV or another engineering system as generic TR19 work simply to create a contractor enquiry.
Responsibility statement:
EC Cleaners Network is operated by Search and Submit Ltd. This page provides general commercial and procurement information and is not food-safety, HACCP, occupational-hygiene, COSHH, fire-safety, engineering or technical advice. Search and Submit Ltd does not inspect, clean, test, survey, design, commission, remediate, certify or technically approve kitchen extraction, ventilation or LEV systems and does not accredit or guarantee independent contractors. Independent appointed contractors and relevant competent professionals remain responsible for technical assessment, safe working, physical delivery, testing, reporting, certification and professional conclusions within their appointed scope.
TR19® Grease and TR19® Air are BESA specifications. References are descriptive and no BESA endorsement of or affiliation with EC Cleaners Network is claimed.