Last Update: 3 September 2025
A smelly garbage disposal can be a nuisance, but cleaning it is often simpler than you think. This guide provides effective methods using common household items to tackle odors and keep your disposal running smoothly. Regular cleaning is essential to prevent mold and bacteria growth, especially in the moist environment of a kitchen sink.
The article outlines three primary methods: the baking soda and vinegar approach for a deep clean, using ice and salt to scrub the blades and dislodge debris, and employing citrus peels to deodorize the unit. It emphasizes safety by advising to always turn off the power before cleaning and never to put hands inside the disposal. By following these tips, you can maintain a fresh-smelling and functional garbage disposal.
Has the question crossed your mind, “how to deep clean a garbage disposal?” Believe it or not, the garbage disposal needs to be cleaned, like your kitchen sink drain with tiny food particles, coffeee grounds, and several other appliances around your home. Regular disposal cleaning is necessary.
We know it’s easy to forget about cleaning garbage disposals as they are concealed under the sink. However, cleaning dirty garbage disposals are occasionally necessary to keep them free from unwanted mould and harmful bacteria when this is their breeding ground, especially since the kitchen andthe area provide a perfect space for mould growth.
Even though cleaning appliances are intimidating, tidying up garbage disposal can be quite effortless if you use the proper techniques. That’s why we have gathered some of the best tips for cleaning garbage disposal to make the task easier.
So, check them out before you wear rubber gloves and clean your smelly garbage disposal!

Things You’ll Require To Clean A Garbage Disposal
The good thing about cleaning garbage disposals are that you don’t need fancy stuff. Most of it can be accomplished with household items in our pantry. Make sure to have all or some of these before attempting to clean your garbage disposal so that you can get done with it in one sitting.
Here are the supplies you’ll need:
- Old toothbrush/kitchen sponge
- Dish detergent
- Flashlight
- Baking soda
- White vinegar
- Salt
- Ice cubes
- Lemon peels or citrus fruit peel
- Rubber gloves
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How To Clean A Garbage Disposal
Now, let’s check out some tried and tested methods for cleaning garbage disposals.
You can even combine the procedures
if it’s your first time cleaning garbage disposals to achieve a deep clean.
Also, most methods use natural ingredients, so you may need to repeat the process once or twice to get the desired results. Never put your hands into the garbage disposal to remove objects. And don’t use traditional chemical drain cleaning products in a garbage disposal.
Method 1: The Baking Soda And Vinegar Method
1. Turn Off The Power
Like any other appliance, the first step to cleaning your garbage disposal is disconnecting it from the power.
This prevents the chance of accidentally starting the appliance during the cleaning process.
You can disconnect the device from the outlet under your kitchen sink. Or, you can turn it off directly from the breaker box.
2. Clean The Baffle Or Splash Guard
The garbage disposal splash guard or baffle has many grooves and crevices, ideal nesting spots for smaller food scraps and grease. Check for large food scraps or other debris in the grinder; they may be blocking it.
Over time, these particles can rot and give out an unpleasant smell.
So, start the cleaning process by giving the rubber splash guard a good scrub using an old toothbrush or a kitchen sponge.
Ensure you lather the dish soap to break down the grease accumulated on the rubber flaps. Dish soap is also used with hot water to unblock household drain blockages. So, you can add building water and dish soap to create a soapy water mixture.

3. Remove Food Residue From The Grinding Chamber
The grinding chamber is where the food particles get broken down, so it naturally traps many particles, especially between the teeth. As it can be hard to see the particles,
we recommend using a flashlight to get a better view.
Before proceeding to clean the grinding chamber, make sure to wear your protective gloves to avoid accidents. Then, use the sponge or toothbrush to remove as much gunk as possible. If you see big chunks, use a pair of tongs to pull them out.
4. Dunk The Baking Soda And Vinegar
The best solution to break down any leftover food particles is
a mixture of baking soda and vinegar.
You only need to pour half a cup of baking soda into the drain and let it sit for half an hour. Then, pour one cup of white vinegar into the garbage disposal, and you should see the mixture foaming.
At this point,
you should cover the drain with the sink stopper to let the mixture work for at least ten minutes.
After that, remove the stopper, run hot water to rinse off everything, and turn on the garbage disposal.
Method 2: Using Ice And Salt
Another nifty garbage disposal cleaning method is using ice cubes and salt. This is super helpful when you feel something is stuck to the blades or there is a possible clog. All you need to do is pour two cups of ice cubes and a cup of rock salt into the drain and turn on the garbage disposal.
The combination of ice and salt essentially works as a scrub for the blades, so you’ll need to let the appliance run until all the ice is gone.
Remember not to run hot or warm water when the garbage disposal is turned on, as it can damage the appliance.

Method 3: Using Lemon Or Citrus Peel
Has your garbage disposal been smelling bad for a while? Don’t worry;
you can efficiently deodorise it and eliminate the stale kitchen sink smell with leftover lemon and citrus peels.
Just
put the peels of any citrus fruit into the drain opening,
run cold water, and turn on the garbage disposal. You can also add a few ice cubes to intensify the scrubbing action.

Is Your Garbage Disposal Not Working? Call Us!
That concludes our guide on garbage disposal cleaning! We hope you have learnt a thing or two about how to clean a garbage disposal. The abovementioned methods will occasionally keep your garbage disposal clean and running smoothly. Just make sure to follow the special cleaning instructions, if any, provided by its manufacturing brand to be on the safer side.
And remember, never force large chunks of food waste down the garbage disposal system as it can damage the blades. Always flush food debris with running water so that nothing gets stuck. Purchasing a sink stopper for your drain opening may be a good idea.
If your garbage disposal is malfunctioning, check out these
four solutions for the most common garbage disposal problems.
For other plumbing needs and issues, contact our expert plumbers for cost-effective plumbing services.
Gold Coast Plumbing Company
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commercial plumbing,
so you don’t have to worry about a thing in your plumbing system.
Call us today
to learn more about our full range of plumbing services. Until next time!