Sanitize Your Dishwasher Properly (Quick Checklist Method)

Learn how to sanitize your dishwasher safely using simple household methods. Follow this quick checklist to kill bacteria, remove odors, and keep your dishwasher hygienic.

APPLIANCE CARE

2/23/20262 min read

blue and white cooking pot on stove
blue and white cooking pot on stove

When should you sanitize your dishwasher?

Sanitize it if you notice:

  • Musty or sour smells

  • Sticky interior walls

  • Cloudy dishes after washing

  • You recently washed very greasy loads

  • It has been over a month since deep cleaning

Sanitizing removes bacteria, mold, and hidden residue that normal washing does not.

The 20-Minute Dishwasher Sanitizing Checklist

✔ 1. Empty the dishwasher completely

  • Remove all dishes and utensils

  • Check the bottom for loose food pieces

  • Take out anything stuck inside

Sanitizing works best on a fully empty machine.

✔ 2. Clean the filter before sanitizing

  • Twist out the bottom filter

  • Wash with warm soapy water

  • Scrub gently using a soft brush

  • Reinstall securely

Skipping this step leaves bacteria trapped inside.

✔ 3. Wipe the door seal and edges

Use a damp cloth with mild soap to clean:

  • Rubber door gasket

  • Door corners

  • Bottom lip under the door

This area holds mold more than the interior walls.

✔ 4. Run a hot vinegar sanitizing cycle

  1. Pour 1 cup white vinegar into a dishwasher-safe bowl

  2. Place it on the top rack

  3. Run the hottest cycle available

Hot water plus vinegar removes grease, kills odor-causing bacteria, and dissolves buildup.

✔ 5. Add baking soda for final sanitation boost

After the vinegar cycle finishes:

  • Sprinkle 2–3 tablespoons baking soda across the bottom

  • Run a short hot cycle

This neutralizes remaining odor and brightens the interior.

✔ 6. Let the dishwasher air dry

  • Leave the door slightly open for 30–60 minutes

  • Allow moisture to escape

Drying prevents bacteria from returning.

How often should you sanitize a dishwasher?

  • Heavy daily use → once per month

  • Average household → every 2 months

  • Light use → every 3 months

If you ever smell odor, sanitize immediately.

Important sanitizing mistakes to avoid

❌ Do not mix vinegar and bleach
❌ Do not pour vinegar into detergent dispenser
❌ Do not sanitize with dishes inside
❌ Never skip filter cleaning first

Correct order makes sanitizing much more effective.

Simple habits that keep your dishwasher sanitary longer

  • Leave the door slightly open after cycles

  • Clean the filter every few weeks

  • Use hot wash settings regularly

  • Avoid letting dirty dishes sit for days

These small habits stop bacteria buildup early.

Sanitizing your dishwasher is a simple routine that takes less than an hour but keeps your machine odor-free, hygienic, and washing at full power. A regular vinegar cycle plus baking soda rinse is enough for most households to maintain a fresh, clean dishwasher year-round.

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