How to Clean a Dishwasher Filter Without Damaging It?

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By Evelyn Johnson

Updated: May 02, 2025

8 min read

How To Clean Dishwasher Filter
AI Generated Image: Dwellect

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    It is important to clean a dishwasher to ensure it runs and functions properly. Most dishwashers are equipped with filters that trap leftover food and residue, which helps to prevent them from being redeposited on the dishes again. The accumulation of grease and food particles reduces its efficiency. Hence, cleaning a dishwasher filter should be in your necessary to-do list monthly task.

    Earlier, dishwashers had self-cleaning filters. However, the modern ones need to be cleaned manually. So, as a homeowner, you must know how to clean the dishwasher filter, and this blog will help you know everything about cleaning the dishwasher filter.

    Why is It Important to Clean a Dishwasher Filter?

    Cleaning your dishwasher filter ensures your glassware is glossy and shiny. A clogged dishwasher filter is a common reason why dishwashers stop cleaning effectively. A clean filter protects the pump from blockages caused by large or foreign objects. As a result, it prevents food particles from recirculating and sticking to the back of the dishes. Since the filter handles multiple tasks, it becomes important to clean it at regular intervals. A clean filter prevents clogs and buildup, which ensures the smooth functioning of the dishwasher.

    Step-by-Step Guide to Clean the Dishwasher Filter

    Before you start with the cleaning process, you need two major cleaning tools and materials -

    Tools Materials
    • Sink or large bowl
    • Dishcloth or sponge
    • Warm Water
    • Nylon Brush
    • Dishwash Soap
    • Small soft toothbrush
    • Dishwashing liquid containing a degreaser.
    • Distilled white vinegar (baking soda if required).

    Once you have materials in hand, start with  the process mentioned below -

    Find and Remove the Filter

    A Person Removing the Filter of the Dishwasher
    AI Generated Image: Dwellect

    You need to identify if the dishwasher has a self-cleaning filter or a manual filter. If it is a self-cleaning one, it can be cleaned on its own. However, in the case of a manual filter, you need to remove it from the washer, which is located at the bottom of the dishwasher. Depending on the dishwashing machine, the filter may be round or have just one cylindrical piece. They may also have a secondary flat filter - with a mesh around it.

    The filter generally consists of two parts - an upper filter and a lower filter. To remove the filter, twist the upper filter counterclockwise and lift it out. Then, gently lift the lower filter and pull it in the forward direction.

    Wash the Filter With Warm Water

    A Person's Hands Rinsing a Metallic Kitchen Filter Under a Stream of Warm Water
    AI Generated Image: Dwellect

    Rinsing the filter in warm water can get rid of most soil and residue. However, if there is extreme buildup of grease and food particles, soak it in warm water for at least 10 minutes. This loosens the debris, which can easily be scrubbed away with a soft-bristled brush. It is also advisable to gently scrub the mesh as well. This ensures that even the stubborn food particles are cleaned, in addition to hard water stains.

    Be gentle and avoid using a wire brush or scouring pad. These materials could damage the filter. Once cleaned, thoroughly rinse the filter to ensure all the debris is washed away and they are no longer greasy.

    Some Tips It is advisable to replace the filter if the accumulation of debris has damaged it.

    Reinstall the Filter

    A Hand Reinstall the Dishwasher Filter
    AI Generated Image: Dwellect

    Before reinstalling the filter, it is advised to wipe the filter housing, using a damp sponge soaked in soap water. This helps to get rid of any food particles that may have accumulated there. Now that everything is cleaned, it is time to reinstall the filter.

    To reinstall the filter, place the flat filter first and then insert the cylindrical or the round one. Turn it clockwise to ensure it is fitted securely in place and is lined up properly. If the filter still turns, it’s not tightened properly. In that case, keep turning it clockwise until you are sure that it doesn’t move. It is also advisable to check the filter again before running a dishwasher, as loose a filter may cause irreversible damage to the machine.

    How to Deep Clean a Dishwasher Filter?

    Apart from regular cleaning, it is important to deep clean the filter. This is because they can harbor lingering residue and a weird smell, in addition to mold and mildew. Deep cleaning ensures your dishwasher is running effectively in the long term. To deep clean, here’s the process you need to follow -

    • Remove all the silverware, dishes, and racks from the dishwasher. This makes it easier to clean.

    • Use dishwashing soap and warm water to scrub off the wall, gasket, racks, and door of the dishwasher.

    • You can also use a spray solution made with vinegar and baking soda to get rid of the stubborn stains.

    • Clean the dishwasher filter following the above steps. If the dirt and grime don’t come out easily, soak it in a solution made of baking soda and vinegar.

    • When cleaning the filter, don’t forget to clean the dishwasher drain. Use a sponge and hot water mixed with soap or vinegar.

    • Lastly, don’t forget the hinges, corners, and inside edges of the washer. They may have splatter stains that need to be removed.

    As you clean the interior, it is also advisable to clean the exterior as well. The exterior cleaning method differs depending on the type of material -

    • For a glass surface, use a glass cleaner.

    • For stainless steel, use a stainless steel cleaner.

    • For plastic, soak the sponge in detergent water and wipe it off.

    How Often Should You Clean Dishwasher Filter?

    A Women Wiping a Dishwasher
    AI Generated Image: Dwellect

    Most experts suggest cleaning it every month. But some also advised to clean it every 3-6 months. However, the answer depends on certain factors such as - the type of filter, how much you use the dishwasher, how much debris gets accumulated, and the manufacturer’s recommendations. Cleaning the dishwasher filter regularly helps to ensure they work optimally.

    As the filter hides at the bottom of the dishwasher, not so many people think about cleaning it, but there are certain factors that may hint at cleaning the filter, such as -

    • Foul odor.

    • Visible food particles.

    • Food stuck in the sprayer.

    • Water not draining properly.

    If you see any of the above, it’s better not to wait for routine washing. Get started with the cleaning process immediately. This is because, if left unchecked, they can reduce the efficacy of the machine.

    Conclusion

    It is easy and simple to clean the dishwasher filter. Make it a habit of cleaning them at least once a month to minimize the residue buildup and keep the machine functional for a long. You can either use ingredients available in the kitchen, or you can get cleaning agents from your nearby stores. If you are unsure of cleaning the filter on your own, consider calling a professional!

    FAQs

    How long does it take to clean a dishwasher filter?

    Most homeowners may worry about the time. But it only takes a few minutes - depending on the amount of debris.

    How to know if the dishwasher filter is clogged?

    If the dishes are coming out with soap residue or food particles on them, it means the filter is clogged.

    Can I pour vinegar into the bottom of a dishwasher?

    Instead of pouring vinegar directly into the dishwasher, it is advisable to pour it into a microwave-safe bowl and put it on the top rack of the unit.

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