Grease Trap Maintenance Tips for Melbourne Commercial Kitchens

Professional grease trap pump-outs are essential — but what your kitchen team does between those services makes an enormous difference to how well your trap performs, how often it needs cleaning, and how much you spend on maintenance over time. Melbourne commercial kitchens that follow good daily practices can often extend the interval between professional cleans, reduce emergency call-outs, and maintain consistent compliance with EPA Victoria and trade waste requirements.

Here are the maintenance tasks every Melbourne kitchen should be performing on a daily, weekly, and monthly basis.

Daily Maintenance Tasks

Scrape All Plates and Cookware Before Washing

This is the single most effective thing your kitchen staff can do to reduce grease trap loading. Every plate, pot, pan, and utensil should be thoroughly scraped into a waste bin before it goes anywhere near a sink or dishwasher. Food scraps and residual grease that enter the drainage system end up in your grease trap, filling it faster.

Train all kitchen staff — including casual and new employees — on proper scraping procedure. Place clearly labelled scraping stations near dishwashing areas to make compliance easy.

Use Sink Strainers on All Drains

Mesh sink strainers catch food particles that would otherwise enter your grease trap. They are inexpensive, easy to install, and highly effective. Empty and clean strainers at the end of every shift — a clogged strainer defeats its purpose and causes water to back up.

Never Pour Oil or Grease Down the Drain

This should be an absolute rule in every commercial kitchen, but it is broken more often than you might think. Used cooking oil must be collected in dedicated containers and disposed of through a licensed oil recycler. Even small amounts of oil poured down a sink accumulate rapidly in your trap.

Place clearly labelled oil collection drums near fryers and cooking stations. Many Melbourne businesses use a recycled cooking oil collection service, which is often free or even generates a small income.

Wipe Down Greasy Equipment Before Washing

Before washing pots, trays, and equipment that have heavy grease residue, wipe them down with paper towels or disposable cloths. This removes the bulk of the grease before it enters the water system. Dispose of the used towels in general waste — never flush them.

Weekly Maintenance Tasks

Inspect the Grease Trap Visually

At least once a week, a designated staff member should visually check the grease trap. For under-sink units, open the lid and look at the FOG level. For in-ground traps, check around the access point for any signs of overflow, leakage, or odour.

Keep a simple log of these inspections. Noting FOG levels week by week helps you predict when the next professional clean is needed and provides useful records if council inspectors visit. Understanding how often your trap needs cleaning becomes much easier with consistent monitoring data.

Clean Under-Sink Trap Components (If Accessible)

Some smaller under-sink grease traps have removable baffles or baskets that kitchen staff can clean weekly. If your trap has these features, remove them carefully, scrape off accumulated grease into a waste container, and rinse the components before replacing them.

Important: this is not a substitute for professional pump-outs. It simply helps maintain flow between services. Always refer to your trap manufacturer’s guidelines before attempting any disassembly.

Check Floor Drains for Grease Buildup

Floor drains in cooking areas can accumulate grease even if your trap is functioning properly. Remove floor drain grates weekly and clean out any visible grease or debris. This prevents slow drainage and reduces the risk of slip hazards from grease-coated floors.

Monthly Maintenance Tasks

Deep Clean the Area Around the Grease Trap

Grease and grime tend to accumulate on surfaces surrounding the trap — the floor, walls, and any plumbing connections. A monthly deep clean of this area prevents buildup, reduces odours, and makes it easier to spot leaks or damage during your weekly inspections.

For in-ground traps, clear any debris, vegetation, or stored items from around the access point. The trap must be easily accessible for professional cleaning and council inspections at all times.

Review Your Cleaning Schedule

Once a month, review your grease trap cleaning records and assess whether your current pump-out frequency is adequate. If weekly inspections show FOG levels approaching the 25% mark before your next scheduled clean, it is time to increase the frequency.

Seasonal changes can affect your schedule — Melbourne restaurants often see increased trade during summer, the Melbourne Cup carnival, and the Christmas period, all of which mean higher FOG output. Use our cleaning schedule calculator to adjust your frequency as conditions change.

Train New Staff on Grease Trap Procedures

Hospitality has high staff turnover. Ensure that new team members are trained on your kitchen’s grease trap procedures during their induction. The best maintenance practices in the world are useless if half your team does not know about them.

Create a simple, laminated instruction sheet for display in the dishwashing area covering the key rules: scrape before washing, use strainers, never pour oil down drains, and report any drainage issues immediately.

What Not to Do

Some common practices can actually harm your grease trap or create compliance issues:

Do not use chemical drain cleaners: These products can corrode trap components, disrupt the FOG separation process, and may violate your trade waste agreement.
Do not use biological additives without professional advice: Some enzyme or bacteria-based products claim to break down grease, but they can emulsify FOG and allow it to pass through the trap into the sewer system — defeating the trap’s purpose entirely.
Do not flush the trap with hot water to dissolve grease: This simply melts the FOG temporarily, sending it downstream where it re-solidifies and causes blockages in your drain lines.
Do not attempt full pump-outs yourself: Grease trap waste must be disposed of at an EPA Victoria-licensed facility by a licensed waste transporter. DIY disposal is illegal and can result in significant penalties.

Putting It All Together

Effective grease trap maintenance is a combination of good daily habits, regular monitoring, and professional servicing at the right intervals. Your kitchen team handles the day-to-day tasks, and a scheduled maintenance plan with a professional service ensures your trap is thoroughly cleaned, inspected, and documented on a regular basis.

By following these tips, Melbourne commercial kitchens can reduce emergency plumbing costs, extend the life of their grease trap, maintain compliance with EPA Victoria and council requirements, and keep their kitchens running smoothly. Contact us today to discuss a maintenance plan tailored to your operation.

Grease Trap Maintenance Tips for Melbourne Commercial Kitchens