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Commercial grease trap guide

Commercial Grease Trap Maintenance Checklist

A simple routine helps kitchen and facilities teams spot changes before a grease trap becomes an operational problem.

Commercial kitchens Practical guidance UK coverage
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A simple routine helps kitchen and facilities teams spot changes before a grease trap becomes an operational problem.

Commercial grease trap maintenance checklist
Grease trap maintenance should be planned around the real kitchen and site conditions.

Know what equipment you have

Record the trap location, approximate size or capacity, manufacturer details if available and how the unit is accessed. This saves time when a new staff member or contractor needs to understand the site.

If there are several traps, label them clearly and keep separate service records.

Keep the trap accessible

Do not allow stock, bins or equipment to block access. If a service vehicle needs a particular yard or loading area, make sure the requirement is understood before the visit.

Basement and internal installations should have a clear, safe route for servicing.

Commercial kitchen grease trap maintenance
Commercial kitchen conditions, access and throughput all affect grease trap maintenance.

Watch for operational changes

Odour, slower drainage, visible grease build-up, unusual noise or repeated backup should be recorded rather than dismissed. Small changes can show that the existing maintenance interval is no longer suitable.

If kitchen throughput increases, review the schedule proactively.

Record every service

Keep the date, work completed, observed build-up and any recommendation about the next interval. Even a simple spreadsheet can make maintenance decisions far more evidence-based.

Multi-site operators can use the same format across locations while keeping intervals specific to each kitchen.

Review staff practices

Scrape food waste before washing, keep waste oil out of sinks and make sure cleaning routines are not simply pushing more solids and grease into the drainage system.

Good kitchen practice supports the grease trap; it does not replace routine servicing.

Useful records beat guessworkThe most valuable maintenance schedule changes in response to what is actually found at the site.

Useful information to include when requesting service

PremisesBusiness type, postcode and trading hours.
TrapSize, location and previous service date if known.
AccessVehicle position, loading restrictions, hose distance or basement access.
ConditionRoutine service, odour, slow drainage, heavy build-up or overflow.

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