Food workers prevent pests by eliminating what attracts them: accessible food, standing water, and sheltered hiding spots. Every task in a commercial kitchen, from how you store dry goods to how you take out the trash, either invites pests or keeps them out. The FDA Food Code requires that food establishments be maintained completely free of insects, rodents, and other pests, and the bulk of that responsibility falls on daily habits rather than occasional exterminator visits.
Remove Food, Water, and Shelter
Pests enter a building for three reasons: food, water, and a place to hide. Your job as a food worker is to deny all three. That means wiping down prep surfaces after every use, sweeping floors throughout the shift (not just at closing), and never letting trash cans overflow. Spills that sit for even a few hours can draw cockroaches and flies, especially sugary liquids or grease.
Standing water is just as attractive as food. Floor drains need routine sanitation to prevent the bacterial buildup that breeds drain flies. Drip trays under refrigeration units and ice machines should be emptied and cleaned daily. Leaky faucets or pipes create moisture pockets behind walls that rodents and roaches treat as water sources, so reporting plumbing issues immediately matters more than most workers realize.
Clutter is shelter. Cardboard boxes left stacked in corners, unused equipment gathering dust, and crowded storage areas all give pests places to nest undetected. Break down boxes and remove them from the kitchen promptly. Keep storage rooms organized with clear sightlines so you can spot problems early.
Store Food Properly
All food must be stored at least six inches off the floor. This is an FDA Food Code requirement, and it exists for two reasons: it allows you to clean underneath shelving, and it removes ground-level hiding spots where rodents travel along walls. Dry goods should also be kept at least 18 inches away from outer walls, which makes it easier to monitor for pest activity, clean behind shelves, and avoid temperature or condensation issues from exterior walls.
Open bags of flour, sugar, rice, and other dry ingredients should be transferred into sealed, food-grade containers with tight-fitting lids. A torn bag of flour sitting on a shelf is an open invitation. The same goes for walk-in coolers and freezers: even cold temperatures won’t stop rodents from gnawing through loosely wrapped food if they find a way in.
Seal Entry Points
The FDA Food Code specifies that all outer openings of a food establishment must be protected against insect and rodent entry. That includes filling or closing holes and gaps along floors, walls, and ceilings, keeping windows closed and tight-fitting, and using solid, self-closing, tight-fitting doors. A mouse can squeeze through a gap the width of a pencil, roughly a quarter inch.
As a food worker, you may not be the one caulking gaps in the foundation, but you are the one who notices them. Report cracks around pipes, gaps under doors, damaged weather stripping, and broken screens. Loading dock doors that stay propped open during deliveries are one of the most common entry points. Air curtains installed above doorways create a barrier of forced air that blocks flying insects, and many food service operations use them at entrances that open frequently.
Inspect Deliveries Before They Come Inside
The FDA Food Code requires routinely inspecting incoming shipments of food and supplies. Pests often hitch rides into a building inside cardboard boxes, on wooden pallets, or within bulk ingredient packaging. Before accepting a delivery, check for gnaw marks on boxes, torn packaging, rodent droppings (which look like small dark pellets), and cockroach egg casings, which resemble tiny dark shells in shades of brown, black, or dark red.
If you find any evidence of pest activity, reject that portion of the shipment. Don’t bring contaminated boxes inside to “deal with later.” Once pests are introduced to your facility, the problem escalates quickly. Cockroach egg casings each contain a cluster of eggs, so a single overlooked case can lead to a full infestation within weeks.
Manage Waste and Outdoor Areas
Garbage containing food scraps needs to go into tightly covered trash cans, both inside the kitchen and outside at the dumpster. Indoor bins should be emptied before they overflow, ideally multiple times during a busy shift. Lids should close completely. Bins with food residue caked on the inside attract flies and roaches even when they’re technically empty, so wash them regularly.
Outside, dumpsters should have functioning lids that stay closed. The area around the dumpster should be clean and free of loose debris, spilled grease, or pooled water. Overgrown vegetation near the building provides harborage for rodents, so keep the perimeter trimmed and clear. The farther waste receptacles sit from the building’s entrance, the less likely pests are to follow the scent trail inside.
Know the Signs of an Infestation
Part of your role is recognizing when pests are already present. Cockroaches leave behind tiny dark droppings that look like grains of black pepper, often found in corners, under equipment, and along baseboards. Rodents leave rice-shaped droppings, greasy rub marks along walls where they travel repeatedly, and gnaw marks on packaging or wood. You might also notice a musty or oily odor in areas with heavy rodent activity.
Seeing a single cockroach during the day is a strong indicator of a larger problem, since they’re nocturnal and only venture out in daylight when hiding spots are overcrowded. A live rodent sighting during business hours carries the same implication. Don’t dismiss a single sighting as a fluke.
Report and Document Everything
Every food establishment should maintain a pest sighting log. When you spot evidence of pest activity, record the date, time, type of pest, location of the sighting, your name, and the action taken. This log serves multiple purposes: it helps your pest control provider target treatments accurately, it demonstrates compliance during health department inspections, and it reveals patterns over time, like recurring activity near a specific drain or storage area.
Report sightings to your manager immediately, not at the end of your shift. Quick response is the difference between catching a problem early and dealing with an established colony.
Leave Pesticide Application to Professionals
Food workers should never apply pesticides on their own. The FDA Food Code has strict rules about how toxic materials are used in food establishments. Pesticides must be applied in a way that prevents contamination of food, equipment, utensils, and linens. That means removing or covering all food contact surfaces with impermeable covers before application, then cleaning and sanitizing everything afterward.
Licensed pest control operators understand which products are approved for use in food environments and how to apply them safely. When pesticides are necessary, they should be the last resort after non-chemical methods like traps, physical removal, and exclusion have been considered. This approach, known as Integrated Pest Management, prioritizes prevention and uses chemical treatment only when pest populations cross a threshold where they pose a health hazard. Your contribution to that system is the daily work of sanitation, proper storage, and vigilant reporting that keeps pest pressure low enough that chemicals rarely become necessary.
Daily Habits That Matter Most
Pest prevention in a food establishment isn’t a single task on a checklist. It’s built into dozens of small actions throughout every shift. The practices that have the biggest impact are consistent, routine ones:
- After each use: sanitize prep surfaces and cutting boards
- Throughout service: sweep floors, wipe down cooking equipment, and empty trash before it overflows
- At closing: mop all floors, degrease cooking surfaces, clean floor drains, and empty all drip trays
- At delivery: inspect every shipment for damage, droppings, or egg casings before bringing it inside
- Always: store food in sealed containers off the floor, keep doors closed, and report any sign of pest activity immediately
The FDA Food Code also requires routine inspections of the premises for evidence of pests and elimination of harborage conditions. In practice, this means every food worker should be scanning their work area with pest prevention in mind, not just during scheduled deep cleans but during every shift. The facilities that stay pest-free aren’t the ones with the best exterminator. They’re the ones where every worker treats sanitation and vigilance as part of the job.