Ultimate Guide for Cleaning Grease Traps in Commercial Kitchens

As a restaurant owner, you understand the essential role of cleaning the grease trap. While getting rid of the accumulation of fats, oils, and grease (FOG) is a challenging task, it is essential and must be done regularly. Grease traps serve an essential function, preventing FOG from being washed down the drain. If FOG accumulates down the drain, it can clog the plumbing and sewer systems and contaminate the natural environment. Food businesses are required to have grease traps to avoid this, and businesses may be subject to fines for violations.

Steps for Cleaning a Grease Trap

1. Locate the Grease Trap

Grease traps are typically located inside the building or outdoors. External grease traps can often be identified by their manhole covering or septic tank-like appearance. When indoor, grease traps are commonly located in the basement (directly below the kitchen), under the kitchen sink, or beneath a metal flash plate. Once you find the grease trap, assess its size. Knowing the size helps determine if you need professional equipment for cleaning or if it's small enough for in-house staff to clean. Grease traps with a 500 to 2500-gallon capacity require professional tools and experience, while smaller ones can typically be cleaned by trained restaurant personnel.

2. Work with Cool Water

Using cold water helps FOG to separate to the top. Allow ten minutes for the water from the dishwasher or sink to cool before beginning. Carefully lift the grease trap cover with a crowbar. Be cautious, as the gasket can be easily damaged. If the cover is bolted, you may need a wrench. Plastic lids are easier to handle, as they lift off without difficulty. After removing the cover, you'll likely encounter a dense layer of sludge. Use a scoop to scoop out the floating grease. Once the FOG is removed, remaining fluids and food solids will remain. A powerful shop vac is essential to remove these leftovers. Be sure the sinks and dishwashers are not in use to avoid the trap overflowing while you work.

3. Maintain the Grease Trap

The next step is to thoroughly scrub the sides, baffles, and lid of the grease trap. A shop vacuum is necessary to remove any solidified grease stuck in the recesses. For a more complete clean, use a scrubber or steel wool, detergent, and slightly warm water. Properly scrub the interior and exterior, and rinse the soap and debris out with clean water. Once done, you should have a fresh grease trap. Perform this cleaning as needed to keep it in good condition.

4. Test for Blockages

Once the trap is cleaned, it is essential to inspect the drain for obstructions. Run a gallon of clean water from the kitchen sink to ensure the water flows smoothly without any resistance. If there is, you may need to call a licensed plumber to clear the obstruction. Once the area is clear, reinstall the lid and baffle to secure the trap properly.

5. Safely Dispose of the FOG

Disposing of the collected fats, oils, and grease (FOG) should be done in a safe manner. For smaller amounts, use double-lined garbage bags to throw out the FOG in the local dumpster. A trick is to mix the FOG with kitty litter to harden. For large quantities of grease trap sludge, it’s best to contact a grease trap service for proper disposal.

Grease Trap Cleaning by Grayson Valley Plumbing Services

If you prefer professional help with your grease trap cleaning, trust the experts at Grayson Valley Plumbing Services. We specialize in grease trap maintenance for businesses of all sizes, including schools, hospitals, airports, and more. Our skilled technicians will perform routine cleanings and repairs as needed, using the proper tools and techniques for hard-to-reach areas. We provide detailed reports to help you manage your cleaning schedule and ensure your business is compliant with local grease trap regulations. At Grayson Valley Plumbing Services, we ensure all grease trap waste is removed in accordance with local laws, keeping your business running smoothly and in compliance.

With over seven decades of service, Grayson Valley Plumbing Services is ready to address any grease trap issues swiftly. Trust us for all your grease trap maintenance needs and protect your business's operations with reliable service.

Give us a call now at (888) 860-0649 to request a free in-home estimate.