How Often Should You Clean Your Dishwasher Filter?
Many modern dishwashers have removable filters that should be cleaned regularly to maintain cleaning performance and reduce odors. Here's everything you need to know about when and how to clean yours.
Quick Answer
Clean your dishwasher filter every 1–3 months, depending on usage. Daily use calls for monthly cleaning, while average use can go 2–3 months between cleanings. Always follow the manufacturer's instructions for your specific dishwasher model.
Recommended Cleaning Interval
How often you should clean your dishwasher filter depends on how frequently you run the dishwasher, whether you pre-rinse, and your water hardness. Households with heavy daily use will need more frequent cleaning.
Daily use
Every 1 month
Average use
Every 2–3 months
Light use
Every 3–4 months
Hard water area
Every 1–2 months
Pre-rinse habit
Every 3 months
Factors That Increase Cleaning Frequency
- • Daily dishwasher use with full loads
- • Hard water with high mineral content
- • Cooking with greasy or heavily soiled dishes
- • Not scraping food scraps before loading
- • Older dishwasher with less efficient spray
- • Large family with frequent meal preparation
Why Cleaning Your Dishwasher Filter Matters
Your dishwasher filter traps food particles during the wash cycle. Without regular cleaning, those particles build up — recirculating onto your dishes, causing odors, and forcing your dishwasher to work harder than it should.
Better Cleaning Performance
A clogged filter recirculates food particles back onto your dishes, leaving films, spots, and residue. Cleaning the filter regularly ensures water flows freely and your dishwasher cleans effectively on every cycle.
Reduces Odors
Food debris trapped in the filter decomposes over time, causing unpleasant smells that can transfer to your dishes. Regular cleaning removes the source of odors and keeps your dishwasher smelling fresh.
Improves Efficiency
A dirty filter restricts water flow, forcing your dishwasher to work harder and use more energy to clean each load. A clean filter helps your dishwasher run efficiently, saving water and energy with every cycle.
Extends Dishwasher Life
A clogged filter strains the pump and spray arms, causing premature wear and potential breakdowns. Regular cleaning reduces strain on internal components and can help extend the lifespan of your dishwasher.
Warning Signs Your Dishwasher Filter Needs Cleaning
Not sure if it's time? These are the most common signs that food debris has built up in your filter and it needs to be cleaned.
- 1Dishes come out with food residue, film, or spots after a full cycle
- 2Unpleasant odors coming from the dishwasher, even when it's empty
- 3Gritty or sandy particles left on the bottom of glasses and plates
- 4Cloudy or milky film on glassware and silverware
- 5Water isn't draining fully — pooling at the bottom of the tub
- 6The spray arms seem weak or dishes on the top rack aren't getting clean
- 7It has been more than 3 months since you last cleaned the filter
- 8Visible food debris or slime around the filter area at the bottom of the tub
How to Clean Your Dishwasher Filter
Cleaning your dishwasher filter takes about 10 minutes and requires no special tools — just warm water, a soft brush, and a few minutes of your time. Follow these steps:
Check your dishwasher's owner's manual for the manufacturer's specific cleaning instructions — filter types and removal methods vary by model.
Make sure the dishwasher is turned off and has completed its last cycle. The filter and surrounding area may be hot right after a wash.
Remove the bottom dish rack to expose the filter assembly at the bottom of the tub.
Locate the filter — it's typically a cylindrical piece at the back or center of the tub floor. Some dishwashers have a two-piece filter (upper and lower).
Twist the filter counterclockwise (usually a quarter turn) and lift it straight up to remove it. For two-piece filters, separate the upper coarse mesh from the lower fine mesh.
Rinse the filter under warm running water to remove loose food particles and debris.
Use a soft brush — an old toothbrush works well — to gently scrub away greasy buildup and residue from the mesh. Avoid harsh scrubbing that could damage the fine mesh screen.
For stubborn grease or hard water deposits, soak the filter in warm soapy water for 10–15 minutes, then scrub gently and rinse thoroughly.
Inspect the filter for tears, holes, or warping. A damaged filter should be replaced — check your manufacturer's website for the correct replacement part.
Wipe the filter housing in the tub with a damp cloth to remove any debris or slime that collected around the opening.
Reassemble the filter pieces if applicable, then place the filter back into the housing and twist clockwise until it locks into place.
Replace the bottom dish rack and run a short rinse cycle to flush the system and confirm everything is seated correctly.
Set a recurring reminder so you never forget the next filter cleaning.
Safety tips: Always turn off the dishwasher and wait for it to cool after a cycle before reaching into the tub. The filter and heating element can be hot. Never use abrasive scouring pads, steel wool, or harsh chemicals on the filter — they can damage the fine mesh and degrade the filter material. If the filter is torn, warped, or cracked, replace it with the manufacturer-approved part.
Frequently Asked Questions
Never Forget to Replace Your Dishwasher Filter
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