Wash moldy dishes in hot water with dish soap, then soak them in a bleach solution or vinegar before a final rinse
Mold on dishes comes from moisture trapped in crevices, under dried food, or in the dishwasher itself. The fastest way to remove it is hot water and dish soap to loosen the mold, followed by a soak in either a bleach solution (one part bleach to ten parts water) or white vinegar (undiluted) for 10 to 15 minutes. After soaking, scrub with a brush or sponge, rinse thoroughly under running water, and dry completely before storing. For dishes with stubborn mold in tight spots—like the rim of a mug or grooves in a plate—a soft-bristled toothbrush works better than a sponge.
If the mold smell lingers after washing, soak the dishes again in vinegar or baking soda mixed with water (one tablespoon per cup) for 30 minutes. Baking soda is gentler than bleach and works well on dishes you use for food or drink. Never mix bleach with other cleaners, and rinse bleach-soaked dishes twice to remove all residue before use.
Key Takeaways
- Hot soapy water loosens mold, but a bleach or vinegar soak is needed to kill it completely.
- Vinegar and baking soda are safer for dishes used for eating and drinking, while bleach works faster on items you do not put in your mouth.
- Mold grows fastest in damp dishwashers and dish racks, so running the dishwasher on a hot cycle and air-drying dishes standing upright prevents regrowth.
- Dishes left wet in a closed cabinet or stacked while damp are the most common cause of mold returning within days.
Why mold grows on clean dishes
Mold spores are always present in the air and on surfaces. They need three things to grow: moisture, warmth, and time. A dish that is washed but not dried completely, then stored in a closed cabinet or stacked tightly with other damp dishes, creates the exact environment mold needs. Even a thin film of water left on a plate is enough.
Dishwashers are especially prone to mold because they stay warm and humid between cycles. If your dishes smell moldy right after the wash cycle, the problem is usually the dishwasher itself, not the dishes. Mold can also hide under the rubber seal of the dishwasher door or in the spray arm holes, where it spreads to every load.
Bleach versus vinegar for moldy dishes
Bleach kills mold faster and more thoroughly. Use one part bleach to ten parts water, soak for 10 to 15 minutes, then scrub and rinse twice. Bleach works well on plates, bowls, and glasses that do not hold food or drink for long periods. Never use bleach on wooden spoons, cutting boards, or anything porous, because it can leave a chemical taste or smell. Always rinse bleach-soaked dishes under running water for at least 30 seconds.
Vinegar is safer for dishes you eat from regularly and leaves no chemical residue. Use undiluted white vinegar, soak for 10 to 15 minutes, scrub, and rinse. Vinegar also removes the musty smell mold leaves behind. It works more slowly than bleach but is gentler on your hands and the environment. For very stubborn mold, soak overnight in vinegar.
Baking soda is the mildest option and works best for smell. Mix one tablespoon of baking soda per cup of water, soak for 30 minutes, scrub, and rinse. Use this method if you have sensitive skin or prefer not to use bleach or vinegar.
Cleaning the dishwasher to stop mold from spreading
If your dishes come out of the dishwasher smelling moldy, the dishwasher is the source. Run an empty cycle with two cups of white vinegar poured into the bottom of the machine. The vinegar will circulate through all the spray arms and pipes where mold hides. Do this once a month to prevent buildup.
Check the rubber seal around the door and the filter at the bottom of the tub. Wipe the seal with a cloth dampened in vinegar, paying attention to the creases where mold grows. If the filter is removable, rinse it under hot water and scrub it with an old toothbrush. Leave the dishwasher door open between cycles so the interior dries completely.
If the smell persists after a vinegar cycle, run a second cycle with one cup of bleach in the bottom of an empty dishwasher. This is stronger but very effective. Never mix vinegar and bleach in the same cycle.
Drying and storing dishes to prevent mold
Air-dry dishes standing upright in a dish rack rather than stacking them while wet. Water pools between stacked plates and creates a mold-friendly environment. If you use a dish rack, position it so air can flow underneath and around each dish. Avoid closing cabinet doors until dishes are completely dry—this can take several hours in humid kitchens.
In humid climates or during rainy seasons, use a dish towel to dry dishes by hand, then store them when ready. Leaving clean dishes in the rack overnight, especially in a closed kitchen, is a common cause of mold. If your kitchen stays damp, run a dehumidifier or crack a window while dishes dry.
Scrubbing techniques for dishes with deep grooves or crevices
Mold hides in places a sponge cannot reach: the rim of a mug, the grooves of a textured plate, the handle of a cup, or the threads of a jar lid. Use a soft-bristled toothbrush or an old kitchen brush to scrub these areas after soaking. Dip the brush in the bleach or vinegar solution and work it into every groove.
For jar lids and other small items with tight spaces, soak them separately in a small bowl so the solution reaches all sides. If mold is very stubborn, let the item soak for 30 minutes to an hour before scrubbing. Rinse thoroughly under running water, paying special attention to grooves where cleaning solution can get trapped.
When to throw away a moldy dish
Most moldy dishes can be cleaned and used again safely. However, if mold has penetrated deep into a porous material like wood, bamboo, or unglazed ceramic, it may be impossible to remove completely. Wooden spoons, bamboo cutting boards, and some handmade pottery are difficult to clean because mold roots grow into the material itself.
If a dish has been moldy for weeks or the mold returns when ready after cleaning, the material may be permanently damaged. Glazed ceramic, glass, and stainless steel dishes almost always clean completely. If you are unsure whether a dish is safe to use after cleaning, it is better to replace it than to risk mold spores in your food.
Frequently Asked Questions
Is it safe to eat off a dish after I clean the mold?
Yes, if you clean it thoroughly with hot soapy water followed by a bleach or vinegar soak and rinse twice. Mold itself is not dangerous if you remove it completely, but some molds produce toxins. Soaking kills the mold and removes any toxins. If you are concerned, soak for the full 15 minutes and rinse under running water for at least 30 seconds.
Can I put moldy dishes in the dishwasher?
No. The dishwasher will not reach a hot enough temperature to kill mold, and the mold will spread to other dishes and the machine itself. Wash moldy dishes by hand first with hot soapy water and a bleach or vinegar soak, then you can run them through the dishwasher on a normal cycle afterward if you want.
Why do my dishes get moldy even though I wash them right away?
Your dishwasher or dish rack is the source. If dishes are moldy within hours of washing, the mold is coming from the washing machine or the environment where you store them. Run a vinegar cycle through your dishwasher, or if you hand-wash, make sure dishes dry completely before stacking or storing them in a cabinet.
Does vinegar or bleach work better on moldy dishes?
Bleach works faster and kills mold more thoroughly, but vinegar is safer for dishes you eat from and leaves no chemical residue. For everyday dishes, vinegar is the better choice. Use bleach only on items you do not put in your mouth, like vases or decorative plates.
How long should I soak moldy dishes?
Ten to 15 minutes is usually enough for bleach or vinegar to kill mold. If the mold is stubborn or the smell lingers, soak for 30 minutes or overnight. Longer soaking does not damage dishes and gives the solution more time to penetrate grooves and crevices where mold hides.