That funky smell under the sink is usually the disposal. Here's the exact 10-minute routine our team uses — a manual gasket scrub plus a foaming tablet — to clean and deodorize it properly.

You open the cabinet under the kitchen sink, or lean over to rinse a plate, and there it is: a faint, sour smell you can't quite place. You've wiped the counters, taken out the trash, and run the dishwasher — and it's still there. Nine times out of ten, the culprit is the garbage disposal, and if yours has never been cleaned, you're in very good company. It's one of the most overlooked spots in San Diego kitchens.
The good news: this is a 10-minute job. Below is the exact routine our team follows on member visits — a quick manual scrub of the part that actually holds the smell, followed by a foaming cleaner tablet that reaches everywhere your hands can't. Here's how to do it right, and safely.
A disposal doesn't actually smell because of what goes down the drain. It smells because of what doesn't — tiny bits of food that cling to the rubber splash guard, the underside of the grinding chamber, and the gap between the blades and the walls. That residue sits in a warm, damp, dark space and does exactly what you'd expect.
Left long enough, that buildup turns into a greasy film that traps more debris, slows drainage, and can attract fruit flies. A regular clean keeps the whole sink fresher and the unit running better for years longer.
Never, ever put your hand into a garbage disposal — not even to fish out a bottle cap. Before you reach anywhere near the chamber, turn the unit off at the wall switch. Use tongs or pliers to retrieve anything that's fallen in. Everything below is designed so you never need to reach inside.
A flashlight, an old toothbrush, a microfiber cloth, and one Affresh Garbage Disposal Cleaner tablet (about $1.50 each — you'll find them at Home Depot or on Amazon). That's the whole list, and the tablet is what makes this quick: it foams up and scrubs the parts of the chamber you can't see or reach.
Every 90 days is the sweet spot — often enough to stay ahead of buildup, not so often that it becomes a chore. If your kitchen sees heavy cooking, a scrub of the splash guard in between keeps things fresh.
A few habits do most of the work between cleanings. Always run cold water while grinding — cold keeps fats solid so they wash away instead of coating the pipes. Let the water run for 15 seconds after the grinding stops to flush everything through. And keep the worst offenders out: grease and oil, coffee grounds, eggshells, pasta and rice, celery and other stringy vegetables, and fruit pits all either coat the chamber or jam the blades.
Cleaning a disposal is easy — the tricky part is noticing the small stuff underneath the sink before it turns into a slow drain or a leaking connection. For Livd members, kitchen upkeep like this is exactly the kind of small task your dedicated handyman folds into a scheduled visit, along with a look at the plumbing under the sink while they're down there. Same handyman each time, so they know your kitchen and what it tends to need.
Already a Livd member? Add "clean garbage disposal" to your task list in the Livd app and we'll take care of it on your next scheduled visit.
Not a Livd member yet? Schedule your free home walkthrough at livdhomes.com — we'll assess what your home needs and build a proactive maintenance plan to keep the little things from becoming big ones.