Guide

How to deodorize a smelly garbage disposal.

A smelly disposal is food residue stuck in the grinding chamber and under the rubber splash guard. You can clear and freshen it in a few minutes with kitchen staples.

Published 2026-05-27By Janie SeeShowMeClean NWA

Clean a garbage disposal by scrubbing the rubber splash guard, then pouring in half a cup of baking soda followed by a cup of vinegar and letting it foam for a few minutes. Flush with hot water, then grind a handful of ice and coarse salt to scour the chamber, and finish with citrus peels for a fresh scent. Never put your hand inside.

Scrub the splash guard

The rubber flaps trap more gunk than the chamber. With the disposal OFF, this is where the smell often lives.

  • Turn the disposal off at the switch
  • Lift or fold back the rubber flaps and scrub both sides with an old toothbrush and dish soap
  • Rinse well

Foam it with baking soda and vinegar

The classic foaming reaction lifts residue from the chamber walls.

  • Pour in half a cup of baking soda, then a cup of white vinegar
  • Let it foam and sit for 5-10 minutes
  • Flush with hot running water

Scour with ice, freshen with citrus

Ice physically scours the grind components; citrus leaves it smelling clean.

  • Run the disposal while grinding a handful of ice cubes and coarse salt
  • Follow with lemon, orange or lime peels
  • Run cold water throughout
Rather hand it off? ShowMeClean NWA handles all of this across Barry County and Table Rock Lake. Get a free quote or call (417) 846-1234.

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Common questions

Frequently asked

Scrub the rubber splash guard, foam the chamber with baking soda and vinegar, then grind ice, salt and citrus peels. The splash guard is the most-missed odor source.
Yes. Grinding ice cubes (with a little coarse salt) safely scours residue off the grind components and is a recommended cleaning method.
Grease, fibrous scraps like celery, coffee grounds, eggshells in quantity, and bones. These cause clogs and odor over time.
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