How to Keep Flies Out of Your Trash Cans
If you’ve opened your trash can and suddenly had flies buzzing around you, you’re not alone. Trash cans can quickly become an ideal place for flies to feed and lay eggs, especially during Iowa’s warmer months. The good news is that understanding what attracts flies to your trash cans makes it much easier to keep them away.
Why Are Flies Attracted to Trash Cans?
Flies are attracted to the food, moisture, odors, and organic waste that collect inside trash cans. Some of the most common attractants include:
- Food scraps and residue
- Leaking garbage bags
- Meat and other organic waste
- Sugary liquids and spilled drinks
- Moisture trapped inside the bin
Even after your trash has been collected, residue can remain on the bottom, sides, lid, and other surfaces inside the can. That leftover buildup continues producing odors that can attract flies.
During Iowa’s warmer months, heat can make the problem worse by accelerating decomposition and creating favorable conditions for flies to reproduce.
The Most Common Reasons Flies Gather Around Trash Cans
1. Food Waste and Residue
Even small amounts of food left inside a trash can can attract flies.
Common offenders include:
- Meat scraps
- Fruit and vegetables
- Dairy products
- Pet waste
Food residue can leak from garbage bags and stick to the bottom or sides of the bin. As it begins to decompose, the odors can attract flies looking for food and a place to lay eggs.
2. Leaking Garbage Bags
Garbage bags can tear or leak, leaving liquids and food residue behind even after the trash has been collected.
That buildup can remain inside the bin between collection days, giving flies a continuing food source unless the trash can is thoroughly cleaned.
3. Moisture and Standing Liquids
Liquids from garbage bags, rain, or condensation can collect at the bottom of a trash can.
Combined with food residue, that moisture can:
- attract flies
- accelerate decomposition
- create stronger odors
- provide favorable conditions for fly eggs and maggots
4. Heat and Humidity
Warm temperatures speed up the decomposition of food and organic waste.
During spring and summer throughout the Des Moines metro area, dirty trash cans can become especially attractive to flies because heat intensifies odors and helps create favorable conditions for their life cycle.
How to Keep Flies Out of Your Trash Cans
If flies are gathering around your garbage cans, the goal is to remove what is attracting them and make the bin less inviting.
Step 1 — Remove Trash and Food Debris
After trash collection, check the bottom and sides of the bin for loose food, torn bags, and other debris.
Remove anything left behind before it begins to decompose.
Step 2 — Thoroughly Clean the Bin
Food residue and liquids can stick to surfaces even when the bin looks empty.
Pay special attention to:
- bottom of the bin
- corners and seams
- underneath the lid
- handles and hinges
Thorough cleaning removes the residue and buildup that can continue attracting flies after the garbage itself is gone.
Step 3 — Keep Garbage Bags Sealed
Tie garbage bags securely before placing them in the trash can.
Whenever possible:
- avoid putting loose food directly into the bin
- replace torn or leaking bags
- keep especially messy food waste contained
Reducing leaks means less food and liquid collecting inside the trash can.
Step 4 — Keep the Bin as Dry as Possible
Moisture combined with food residue creates favorable conditions for flies and other pests.
After washing your trash can, allow it to dry before adding new garbage whenever possible. Also avoid letting standing water remain in the bottom of the bin.
Step 5 — Keep the Lid Closed
Keep the trash can lid completely closed whenever possible.
An open or partially closed lid makes it easier for flies to reach the garbage inside and gives them greater opportunity to feed and lay eggs.
How to Prevent Flies From Coming Back
Preventing flies is easier when you remove the things that attract them before they have a chance to build up.
Best Practices
✓ Keep trash can lids completely closed
✓ Bag food waste securely
✓ Clean up spills and leaking garbage bags
✓ Avoid leaving loose food inside the bin
✓ Keep the inside of the bin as dry as possible
✓ Clean trash cans regularly
Even with these steps, food residue, liquids, and grime can gradually build up on the inside of a trash can.
Why Flies Keep Coming Back to Your Trash Cans
This is the frustrating part for many homeowners.
A quick rinse may remove visible dirt, but it often doesn’t remove:
- residue stuck to the sides and bottom
- buildup around hinges, seams, and the lid
- food liquids that have dried onto the bin
- odors that continue attracting flies
If the source of the attraction remains, flies can return—especially during warm weather.
This is one reason many homeowners choose recurring professional trash bin cleaning instead of waiting until flies, odors, or other problems become noticeable.
When Professional Trash Bin Cleaning Can Help
Home cleaning can help control flies, but stubborn food residue and grime can be difficult to remove with a standard garden hose.
At Can Cleaners, our professional trash bin cleaning process uses:
- high-temperature water
- specialized pressure washing equipment
- eco-friendly sanitizing solutions
This helps remove:
✓ food residue and organic buildup
✓ odor-causing bacteria
✓ liquids and grime stuck to bin surfaces
✓ conditions that can attract flies and contribute to maggot problems
Regular professional cleaning helps keep garbage cans cleaner and more sanitary while removing the buildup that can continue attracting flies between trash collection days.
Local Trash Bin Cleaning Services in the Des Moines Metro
For homeowners throughout the Des Moines metro and surrounding Central Iowa communities, regular trash bin cleaning can help remove the food residue, grime, and odors that attract flies and other pests.
At Can Cleaners, LLC, we provide:
Our service is designed to be convenient — we clean your bins the day after trash pickup, so they are empty and ready for service.
Final Thoughts
Flies around your trash cans are usually a sign that food residue, liquids, odors, or organic waste are giving them a reason to stick around.
Keeping garbage securely bagged, lids closed, bins dry, and trash cans regularly cleaned can make them much less attractive to flies. When residue and grime continue building up, professional trash bin cleaning can help remove the source of the problem.
Keeping your trash cans clean isn’t just about appearance—it helps create a cleaner, fresher, and more sanitary area around your home.