The removable black rubber ring at the sink opening is often the source of odors because food splashes onto its underside.
Run the disposer with cold water.The ice acts as a physical abrasive to scrub the grind ring, while the salt provides extra scouring power. 5. Deodorizing with Citrus how to clean insinkerator food waste disposer
For a fresh scent, cut a into small wedges. Drop them in one by one while the disposer is running with a medium stream of water. The citric acid cleans the blades, and the peels provide a natural fragrance. 6. What to Avoid To protect your InSinkErator and your plumbing: The removable black rubber ring at the sink