How to Clean and Deodorize a Garbage Disposal

A smelly garbage disposal can make your whole kitchen smell bad. Food particles get stuck on the blades and under the rubber splash guard, where bacteria grow. Cleaning it takes only a few minutes.

Safety First

Always turn off the disposal and unplug it or switch off the breaker before putting your hand or any tool near it. Never reach into a disposal with your hand while it has power.

What You'll Need

Ice cubes
Coarse salt
Baking soda
White vinegar
Lemon or citrus peels
A scrub brush or old toothbrush

Step 1: Clean the Splash Guard

With the power off, lift the rubber flaps and scrub underneath with a brush and dish soap. This is often where the worst smell comes from.

Step 2: Ice and Salt

Restore power. Drop 2 cups of ice and 1/2 cup of coarse salt into the disposal. Run cold water and turn it on. The ice and salt scrub residue off the grinding chamber.

Step 3: Baking Soda and Vinegar

Turn off the disposal. Pour in 1/2 cup of baking soda, then 1 cup of vinegar. Let it fizz for 10 minutes, then flush with hot water.

Step 4: Freshen with Citrus

Run a few small pieces of lemon or orange peel through the disposal with cold water for a fresh smell.

What Not to Put in a Disposal

Grease and oil
Fibrous foods like celery and corn husks
Coffee grounds in large amounts
Eggshells (they can build up sludge)
Pasta and rice (they swell)
Bones and fruit pits

FAQ

How often should I clean the disposal? Once a week for a quick freshen, and a full clean monthly.

Why does it still smell? The drain line may have buildup. A plumber can check for clogs.