How to Deep Clean Your Dishwasher Filter (And Why It Matters)

How to Deep Clean Your Dishwasher Filter (And Why It Matters)

When was the last time you cleaned your dishwasher — really cleaned it? If your answer is “never,” “I didn’t know it needed cleaning,” or “I just ran some vinegar through it once,” this guide is for you!

Your dishwasher works hard. Over time, food particles, grease, mineral buildup, and odors accumulate inside — especially in the dishwasher filter, the part that traps debris and keeps your machine running smoothly. Cleaning the filter regularly helps your dishes come out cleaner, prevents smells, and keeps your dishwasher working longer.

The best part? You can do it with natural, human-safe ingredients that are great for your home and the planet.

What You’ll Need

• Gloves (optional but helpful)

• Microfiber cloths

• Small cleaning brushes or an old toothbrush

• Distilled white vinegar

• Baking soda

• A dishwasher-safe mug or measuring cup

• Your phone camera (to take photos/video of how parts come apart if needed)

• Optional: small bowl for soaking filters

Step-By-Step: How to Clean Your Dishwasher Filter

Step 1: Remove the Dish Racks and Clean Removable Parts

Take out the utensil basket and dish/rack(s). Wipe them down with a damp cloth — you can spray them lightly with vinegar to help cut through grease.

Step 2: Locate and Remove the Filter

Most dishwasher filters are located at the bottom of the dishwasher under the spray arm. Some twist out, others lift out — check your manual if you’re unsure. Once removed:

• Rinse under warm water

• Use a toothbrush or small brush to scrub away stuck-on food and grime

• For stubborn buildup, soak in warm water with a splash of vinegar for 10–15 minutes (This helps loosen gunk naturally) 

Step 3: Clean Around the Filter Area

With the filter removed:

• Wipe out the inside base of the dishwasher down to the drain

• Use a brush or cloth with a bit of vinegar to remove any buildup or food residue

Step 4: Deodorize Inside the Dishwasher

Place a dishwasher-safe mug filled with about 1 cup of distilled white vinegar on the top rack and run a hot water cycle with no dishes. This helps break down buildup and deodorizes the interior.

If odors persist after the vinegar rinse, you can run a second cycle with 2 cups of baking soda sprinkled on the bottom — don’t use vinegar and baking soda together in the same cycle.

How Often Should You Clean the Filter?

Dishwasher filters should be cleaned at least once a month, especially if:

• You use your dishwasher frequently

• You notice a musty or unpleasant smell

• Dishes aren’t coming out as clean as they should or before switching to a natural detergent

• You see visible buildup around the filter or interior

Regular filter cleaning improves performance and extends the life of your dishwasher.

Watch a Helpful Video Tutorial

Need a visual guide? Here’s a good one that walks you through finding, removing, and cleaning your dishwasher filter. She uses bleach and water, but you can use vinegar like we suggested (personal preference - you decide). Just don't use bleach and vinegar together as that creates a nasty gas you don't want, so just pick ONE: 

This video shows the filter removal and cleaning process clearly so you can confidently follow along. (If you have a different brand, there are other great tutorials on YouTube too — just search “how to remove dishwasher filter” along with your model name.)

Final Tips

• Always scrape large food pieces off dishes before loading — this keeps your filter cleaner longer. Don't over fill your dishwasher; this is where organized placement comes in handy. 
  

• A quick monthly vinegar rinse between deep cleanings helps keep odors at bay.

• If your dishwasher has self-cleaning filters (some newer models do), consult your manual for specific care instructions.

Keeping your dishwasher filter clean is one of those simple home maintenance tasks that pays off big when it comes to fresh-smelling loads and spotless dishes — and you can do it with natural ingredients you likely already have at home.