How to Clean a Sink Disposal
- Vertical Plumbing
- Aug 9
- 2 min read
Updated: Nov 8
A garbage disposal is a handy kitchen tool until it starts to smell or work less efficiently. Over time, food particles, grease, and grime can build up inside the disposal, causing odors and even blockages. Luckily, cleaning your sink disposal is simple and doesn’t require special tools. In this guide, we’ll show you easy and safe ways to keep your disposal fresh and running like new.
Why Cleaning Your Sink Disposal Matters
Regular cleaning prevents:
Bad odors from rotting food particles
Clogs that can slow down your sink drain
Bacterial buildup that could make your kitchen less hygienic
Mechanical wear from food debris is affecting the blades
Step-by-Step Guide to Cleaning a Sink Disposal
Step 1: Turn Off the Power
Always unplug the disposal or switch off the circuit breaker before cleaning to ensure safety.
Step 2: Remove Debris
Use tongs or pliers to pull out any visible debris, never put your hands inside the disposal.
Step 3: Scrub the Rubber Splash Guard
Food often hides under the splash guard (the black rubber flaps at the drain). Remove it if possible and scrub with dish soap and a brush.
Step 4: Clean with Ice and Salt
Pour a cup of ice cubes and a half-cup of rock salt into the disposal. Run cold water and turn on the disposal for 20 seconds. This helps scrub the grinding chamber.
Step 5: Deodorize with Baking Soda and Vinegar
Pour half a cup of baking soda into the disposal, followed by a cup of white vinegar. Let it fizz for 10 minutes, then rinse with hot water.
Step 6: Freshen with Citrus Peels
Grind small pieces of lemon or orange peels to leave a fresh scent.
How Often Should You Clean a Garbage Disposal?
For best results, clean your disposal every 1–2 weeks and deep-clean once a month. If you cook often or put a lot of scraps in it, you may need to clean it more frequently.
Disposal Cleaning Do’s and Don’ts
Do:
Use cold water while running the disposal.
Cut large scraps into smaller pieces.
Run the disposal regularly to prevent rust and buildup.
Don’t:
Pour grease or oil down the disposal.
Put fibrous foods like celery or corn husks inside.
Use harsh drain cleaners—they can damage the disposal.
If cleaning doesn’t solve the problem, your disposal may have a mechanical issue.
Call Vertical Plumbing at (480) 577-8720





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