Post By Admin
May 2, 2025If your garbage disposal smells bad, well, It happens to the best of us! Luckily, it’s something you can fix quickly with a few simple tricks.
Now here’s the thing — keeping your disposal clean is actually part of smart plumbing maintenance service.
Today, we’ll break down why your disposal might be turning your nose up and what to do about it.
Why Does Your Garbage Disposal Stink?
So, your garbage disposal smells bad — but what’s really causing that awful stench?
Over time, leftover bits of food, grease, and gunk start to build up around the blades, inside the drainpipe, and even under the splash guard (that rubber flappy thing at the top).
That buildup becomes a breeding ground for bacteria, which is where the smell comes in — kind of like forgotten leftovers in the back of your fridge.
5 Ways to Make Your Garbage Disposal Smell Fresh
Most of these methods are easy DIY hacks using stuff you probably already have at home. Think citrus, baking soda, and a little hot water magic:
1. Use Citrus Peels (Lemons, Oranges, Limes)
Tossing a few citrus peels into your disposal while running cold water can help clean the blades and leaves a fresh, citrusy scent.
2. Baking Soda and Vinegar
Remember those fun science experiments? Well, that fizzy combo is also perfect for cleaning your disposal!
Simply pour half a cup of baking soda into the drain and one cup of white vinegar. Let it bubble and foam for 10–15 minutes, then flush with hot water.
This combo loosens up grime, neutralises odour, and helps tackle that lingering garbage disposal smell.
3. Ice Cubes and Salt Scrub
Add in a handful of ice cubes and a couple tablespoons of coarse salt (rock salt or sea salt works great.) Run the disposal with cold water — the ice helps knock off stuck-on gunk from the blades while the salt scours the interior.
4. Dish Soap + Hot Water Flush
Squirt a bit of degreasing dish soap into the disposal, then run hot (not boiling) water for 30 seconds to a minute. It cuts through oily residue and freshens things up.
5. Clean the Splash Guard or Rubber Flap
This is usually the primary culprit when garbage disposal odours persist even when everything else has been properly cleaned.
Pull it out carefully and scrub it down with an old toothbrush and a combination of vinegar and dish soap.
Also Read: Can You Put Coffee Grounds in Garbage Disposal?
How to Prevent Smelly Garbage Disposal
Now, how do you keep your disposal clean, fresh, and no longer smells like last week’s leftovers?
The truth is, the key to a long-lasting, odour-free disposal is all about good habits.
These habits aren’t just helpful for your nose; they’re solid plumbing maintenance tips, such as:
1) Run Cold Water Before, During, and After Use
Cold water helps solidify grease and oils so they can be chopped up and flushed out, rather than coating the inside of your pipes.
Let the water run for 15–20 seconds after you turn the disposal off to push everything through the drain.
2) Avoid Dumping Grease or Oil
They may seem liquid when hot, but once it cools, it turns into sticky sludge that clings to pipes and traps food bits — the perfect combo for nasty odours.
Instead, pour leftover grease into a jar and toss it in the bin when it’s full.
3) Don’t Overload It with Food Waste
Your garbage disposal isn’t a catch-all for every bit of food on your plate. Avoid stuffing in large amounts at once and skip fibrous foods such as celery, corn husks, or onion skins.
Go slowly and put items gradually while the water is running.
4) Clean It Weekly with DIY Methods
A daily deep clean is not necessary, but we recommend you give it a quick rinse with baking soda and vinegar or citrus peels once a week.
This method can help freshen things up and remove the gunk before it has time to accumulate and stink.
5) Clean the Splash Guard Frequently
As mentioned, the rubber splash guard is a sneaky source of smell. Pull it up and clean it with a quick scrub every few days.
6) Schedule Routine Plumbing Maintenance
Want to really stay ahead of the game? Having a pro maintain your garbage disposal every now and then helps catch problems before they become big and smelly ones.
Professionals will help keep everything flowing and smelling great all year long!
FAQ About Smelly Garbage Disposal
1. Is there a deodoriser for garbage disposal?
Yes! You can find ready-made garbage disposal deodorisers at most grocery or hardware stores. They’re easy to use and great for quick refreshers between cleanings.
That said, more affordable DIY options like citrus peels or frozen vinegar cubes work just as well. However, keep in mind, deodorising only masks the smell.
2. Will baking soda and vinegar damage a garbage disposal?
Nope! In fact, they’re one of the safest and most effective natural cleaning combinations for your disposal.
Baking soda neutralises odours and vinegar breaks down grime and gunk without the harsh chemicals.
3. How often should you deodorise your garbage disposal?
For most households, once a week is enough to keep odours at bay. If your garbage disposal smells more often feel free to deodorise as needed.
And remember, regular cleaning and good usage habits go a long way in preventing bad smells from showing up in the first place. Think of it like brushing your teeth: quick, easy, and totally worth it!
Also Read: How to Fix Backed-Up Garbage Disposal
Conclusion
No one wants to spend time with a stinky garbage disposal, but with a few cleaning hacks and healthy habits, it is possible to have a fresh-smelling kitchen and a well-functioning sink!
But hey, if you’ve tried everything and your garbage disposal still stinks, it might be time to call in some backup.
At Neighbourhood Plumbing Melbourne, we’ve seen and smelled it all! Thus, we know exactly how to handle stubborn plumbing issues. Our expert team will make sure those bad smells don’t come back!
Need help right away with a deep clean, a disposal tune-up, or just need some professional plumbing maintenance tips? Don’t wait, give us a call today!
About the Author
From unclogging the toughest drains to repairing leaking toilets, Ricky is a seasoned plumber who has brought his craftmanship to homes across Melbourne. He is passionate about sharing plumbing tips just as much as he is about fixing your plumbing issues. So, when your taps or pipes begin leaking, you know who to call.
