How to Clean a Dishwasher

On February 16, 2025 By newsroom Topic: Appliance Buyers Guide

Keep your dishwasher running smoothly and eliminate odors with these three easy steps:


Step 1: Clean the Exterior

  • Plastic Exterior: Use a sponge with hot, soapy water to wipe down the surface.
  • Stainless Steel Exterior:
  • Use a cleaner specifically designed for stainless steel or glass cleaner.
  • Spray the cleaner onto a microfiber cloth (not directly on the dishwasher) to avoid damaging electronic controls.
  • Avoid bleach, harsh chemicals, or abrasive pads to prevent scratches.
  • Seal Between Door and Tub: Clean this area with a rag to remove residue and food particles that cause odors or mold.

Step 2: Clear the Filter and Spray Arm

  • Filter:
  • Pull out the bottom rack and remove the filter system.
  • Disassemble and rinse each part under water, using a brush for stubborn debris.
  • Clean filters every couple of months.
  • Spray Arm:
  • Remove and rinse under a faucet.
  • Clear clogged holes with a toothpick or skewer.
  • Check additional spray holes (on the underside of some spray arms) for blockages.

Step 3: Sanitize and Deodorize

  • Use a citric-acid-based cleaner (e.g., Affresh or Finish) to remove discoloration and odors.
  • Follow product instructions to run an empty wash cycle with the cleaner in the detergent dispenser.
  • For severe mineral deposits caused by hard water, consider:
  • A cleaner designed for hard-water stains.
  • Adding regeneration salt to your dishwasher’s water-softening system to prevent buildup and improve cleaning.

Bonus Tips

  • Frequency: Clean the dishwasher interior every 1–2 months or as needed.
  • For Hard Water Areas: Use dishwasher cleaners regularly to combat mineral deposits.
  • Maintenance: Inspect seals and spray arms routinely to prevent clogs and leaks.

Regular cleaning will keep your dishwasher fresh, efficient, and odor-free for years!


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