Published July 16, 2026 · Grand Natural Inc.
Why Grease and FOG Matter During Inspections
Health inspectors do not just look at food temperatures and handwashing. They also check how your kitchen manages fats, oils, and grease (FOG). Poor FOG control creates fire hazards, clogged drains, odors, and slip risks. Because rules differ by city, county, and sewer district, the safest approach is to treat grease control as a daily operating standard rather than a last-minute cleanup job.
Start by walking through your kitchen with an inspector’s mindset: anywhere grease can collect, a violation can form. That includes behind equipment, under sinks, inside drains, and in outdoor oil storage areas.
Daily and Weekly Cleaning Checklist
Most violations are preventable with consistent cleaning. Use this checklist to keep surfaces, equipment, and drains in shape between professional services.
- Wipe down cooking surfaces after each shift to remove pooled grease before it hardens.
- Clean floors and floor drains nightly; pay attention to corners behind fryers and grills where grease collects.
- Empty and sanitize grease collection containers under hood filters and rotisseries.
- Check sink baskets and scrap blocks to confirm food solids are caught before they enter drains.
- Inspect trash and recycling areas for leaking oil or grease-stained cardboard that can attract pests.
Set a weekly deep-clean rotation for walls, baseboards, and the undersides of equipment. Assign each station a specific FOG task: fryer staff can manage oil transfer, line cooks can handle hood filters, and dish staff can monitor sink strainers. Ownership reduces missed steps.
Grease Trap and Interceptor Maintenance
Grease traps and interceptors stop FOG before it reaches the sewer system. Inspectors often check these devices first because a failing trap is a direct code violation in many jurisdictions.
- Know your device type: under-sink traps, floor drains with small traps, and outdoor interceptors all have different service intervals.
- Measure grease depth regularly. Many operators pump out when the trap reaches 25% grease and solids, but follow your local requirements.
- Keep service logs with dates, pumping volumes, and the service provider’s name.
- Inspect gaskets, lids, and inlet/outlet pipes for leaks, odors, or corrosion.
- Never pour hot grease down drains to “melt” buildup; it will cool and harden farther down the line.
Watch for warning signs: slow drains, gurgling sounds, bad odors near the trap, or grease appearing in floor drains downstream. These often mean your device is filling faster than expected. If your trap backs up between scheduled cleanings, increase the frequency. A trap that is too small or overloaded will not protect your plumbing or inspection record.
Hood, Exhaust, and Filter Checks
Grease accumulation in hoods and exhaust ducts is a leading fire risk and a common inspection focus. Clean filters help airflow and reduce heat stress on the kitchen.
- Remove and degrease hood filters daily or per the manufacturer’s guidance.
- Check the hood interior and visible ductwork for dripping grease or heavy buildup.
- Verify fan operation; belts, motors, and vibration can signal a problem.
- Schedule professional hood and duct cleaning on a frequency that matches your cooking volume—high-volume fryer operations usually need service more often than low-volume sites.
- Keep certificates or service stickers from hood cleaners on file and accessible.
Do not rely only on what you can see from the hood. Grease can coat ductwork above the ceiling or in vertical risers, so professional cleaning that follows NFPA 96 guidance is essential even when surfaces look clean.
Used Cooking Oil Storage and Handling
Used oil should never be left in open containers or poured into drains. A clean, contained oil area shows inspectors you control FOG from fryer to final disposal.
- Use sealed, leak-proof containers sized for your oil volume.
- Store containers on a hard, impermeable surface away from drains, storm sewers, and ignition sources.
- Let oil cool before transferring to prevent burns, container warping, or fires.
- Label containers clearly as used cooking oil to avoid cross-contamination.
- Track pickup dates and volumes to demonstrate regular disposal.
Keep a spill kit with absorbent pads, drain covers, and disposal bags near the oil transfer area. A quick response prevents FOG from reaching floors, drains, or parking lots. Working with a used cooking oil and grease service provider—such as Grand Natural—can keep pickup schedules and maintenance records consistent, so your back-of-house area stays inspection-ready year-round.
Documentation and Staff Training
Inspectors often ask to see records. A well-trained team that keeps simple logs makes inspections faster and less stressful.
- Maintain a grease control log with cleaning dates, trap service dates, hood cleaning certificates, and oil pickup receipts.
- Post FOG best practices near sinks and fryers, including what should never go down the drain.
- Train every shift on spill response, drain strainer use, and proper oil transfer.
- Assign a FOG manager or point person to review logs weekly and schedule service.
- Review local regulations annually because sewer and fire codes can change.
Run a quick internal audit every month. Review logs, check containers, and look for new grease buildup. Catching problems early is cheaper than emergency pumping or re-inspection fees.
Conclusion: Passing a health inspection is about consistent habits, not one-time scrubbing. Build a simple grease and FOG checklist, train your team, keep service records, and match cleaning frequency to your kitchen’s volume. When grease control is part of the daily routine, inspections become routine too.
Need service for your kitchen? Grand Natural provides used cooking oil collection, grease trap cleaning, hood cleaning, and kitchen line jetting to restaurants nationwide. Call (855) 519-5550 or request service online.