How to Clean Your Dishwasher Filter (Step-by-Step Guide)

The Hidden Part of Your Dishwasher

Most people don’t realize that dishwashers have filters — and that those filters need to be cleaned regularly. When they’re neglected, they can quietly affect how well your dishwasher works, how your dishes come out, and even how long the machine lasts.

Cleaning your dishwasher filter is a small home maintenance task, but it has a surprisingly big impact.

Dishwasher filters play an important role in keeping your dishes clean and your machine working efficiently. They trap food particles, grease, and debris that would otherwise recirculate during wash cycles or clog the drain. Over time, buildup in the filter can lead to odors, poor cleaning performance, slow drainage, and even extra strain on your dishwasher’s motor — which can reduce its lifespan. Regularly cleaning the filter helps prevent these issues and keeps your dishwasher running at peak performance.

What Is a Dishwasher Filter (and Why It Matters)

A dishwasher filter sits at the bottom of the machine and is designed to trap food debris, grease, and particles so they don’t redeposit on your dishes or clog the drain.

When the filter is dirty, it can lead to:

• Unpleasant smells

• Grit or residue left on dishes

• Poor cleaning performance

• Extra strain on the dishwasher over time

Keeping the filter clean helps your dishwasher run more efficiently and last longer.

Other tell‑tale signs include: dishes that seem cloudy after a cycle, food particles left behind, or louder than normal dishwasher noises. These can all be symptoms of a clogged or dirty filter that’s no longer effectively trapping debris.

How Often Should You Clean Your Dishwasher Filter?

A good general guideline is:

• Every 1–3 months for most households

• Monthly if you run your dishwasher frequently

You may need to clean it more often if:

• You don’t pre-rinse dishes

• You have a large household

• You cook frequently or from scratch

Signs your filter needs cleaning:

• A musty or sour smell

• Grit or debris on clean dishes

• Standing water at the bottom of the dishwasher

In practice, how often you need to clean the filter depends on use. If you run your dishwasher daily or have a large household, cleaning every 1–2 weeks can keep buildup from accumulating. For lighter use (a few loads per week), a monthly cleaning schedule is usually sufficient. Occasional users may extend this to every 3–6 months, though it’s still smart to check visually more often.

Dishwasher Filters Often Have Two Parts

Many dishwashers actually have two filter components:

• A cylindrical mesh filter

• A flat filter plate underneath

The flat piece is easy to miss, but it’s just as important. Food and grease often collect between the two layers, so if you’re only cleaning the removable cylinder, you’re only doing half the job.

Many dishwashers have more than one filter component. In addition to the removable cylindrical mesh filter, there may be a flat filter plate underneath or even a self‑cleaning mechanism in some models. If your dishwasher has multiple parts, make sure to clean all of them — food and grease often get trapped between pieces, not just on the visible surface.

How to Clean a Dishwasher Filter (Step by Step)

Step 1: Remove Both Filter Pieces

Remove the bottom rack.

Twist and lift out the cylindrical filter, then carefully remove the flat filter underneath.

Set both aside.

This is the main filter part.

Don't forget the second filter part

Step 2: Rinse Off Debris

Rinse both pieces under warm running water. A steady stream is usually enough to dislodge trapped food particles. Avoid harsh tools or forceful spraying that could damage the mesh.

Step 3: Deep Clean If Needed

If there’s greasy buildup:

• Add a drop of dish soap

• Use a soft brush or toothbrush

• Soak briefly in warm water with a splash of vinegar if needed

Rinse thoroughly once clean.

A strong jet is often enough to dislodge particles.

The filter should be thoroughly cleaned before being put back in place.

Rinse the second filter part as well.

Step 4: Reinstall the Filter Correctly

Make sure both pieces are fully clean and locked back into place. A loose or misaligned filter can affect dishwasher performance.

Extra Tips for Cleaning and Maintenance

Before you remove the filter, carefully scrape large food particles from plates and cookware. This reduces the amount of debris that ends up in the filter and makes cleaning easier.- If your filter looks greasy or has mineral deposits from hard water, soak it in a solution of warm water and white vinegar for 15–30 minutes before scrubbing to dissolve buildup naturally.- While the filter is out, use a damp cloth to wipe around the filter housing and under the spray arms — food bits can hide in these spots and cause odors or poor circulation.

Common Mistakes to Avoid

• Using harsh chemicals

• Running the dishwasher without the filter

• Forgetting to clean the surrounding area

• Forgetting to check for food or grime around the filter housing or under spray arms.\

• Waiting too long between cleanings — buildup usually accumulates slowly, and a little maintenance goes a long way.

• Using abrasive tools like wire brushes or metal scouring pads, which can damage the filter mesh and affect performance.

Troubleshooting – When Cleaning the Filter Isn’t Enough

If you’ve cleaned the filter and your dishwasher still seems to struggle, there are a few possible causes:

• Spray arms could be clogged with food particles or mineral buildup — remove and rinse them with warm water.

• The dishwasher drain line may be partially blocked — check the drain hose and connection for obstructions.

• Persistent odors might benefit from running an empty hot cycle with a cup of white vinegar or a dishwasher cleaner designed to remove grease and buildup throughout the machine.If problems persist, checking your dishwasher’s manual or consulting a professional can help diagnose deeper issues.

How This Fits Into a Simple Cleaning Routine

Cleaning your dishwasher filter fits easily into a regular home maintenance routine. It’s a great task to pair with a monthly fridge clean-out, refreshing your sink drains, or doing a seasonal reset around the house. Bundling small, quick tasks together like this makes home maintenance feel far more manageable and helps prevent bigger issues down the line.

In addition to cleaning the filter, running a dishwasher‑safe cleaning cycle once a month with vinegar, citric acid, or a dishwasher cleaner can help dissolve grease and mineral buildup throughout the appliance, not just at the filter. This holistic approach keeps odors down and performance high.

This is one of those small habits with a big payoff. A clean dishwasher filter means cleaner dishes, a fresher-smelling kitchen, and a longer-lasting appliance.

If you’re already cleaning your home, this is one task that shouldn’t be skipped.