How to Clean a Rangehood Filter Step by Step

A rangehood filter that's clogged with grease doesn't just smell bad — it stops your rangehood from working effectively. Here's how to clean it properly so your kitchen stays fresh and your rangehood lasts longer.

How Often Should You Clean the Filter?

For regular home cooking, clean your rangehood filters every 4 to 6 weeks. If you cook frequently with oil or stir-fry often, clean them every 2 to 3 weeks. A simple test: hold the filter up to light. If you can barely see through it, it needs cleaning.

Types of Rangehood Filters

Most domestic rangehoods use one of two types:

• Aluminium mesh filters — washable and reusable
• Charcoal/carbon filters — for recirculating rangehoods, these cannot be washed and must be replaced every 3 to 6 months

This guide covers aluminium mesh filter cleaning. Charcoal filters must be replaced, not cleaned.

What You Need

• Degreasing dishwashing liquid or a dedicated kitchen degreaser
• Hot water (the hotter the better)
• A dishwasher (optional but very effective)
• A non-scratch scrubbing brush
• Baking soda (for stubborn grease)

Method 1: Dishwasher Cleaning (Easiest)

1. Remove the filters from the rangehood by sliding or unclipping them out.
2. Place them in the bottom rack of your dishwasher.
3. Run a hot wash cycle with your normal dishwasher detergent.
4. Allow to dry completely before reinserting.

This method works well for lightly to moderately soiled filters. For heavy grease build-up, use Method 2.

Method 2: Soaking in Hot Degreaser

1. Remove the filters from the rangehood.
2. Fill your kitchen sink or a large tub with the hottest water you can safely use.
3. Add a generous squirt of degreasing dish soap and two tablespoons of baking soda.
4. Submerge the filters and let them soak for 15 to 30 minutes.
5. Use a non-scratch brush to scrub away loosened grease.
6. Rinse thoroughly under hot running water.
7. Allow to dry completely before reinserting.

Tips for Really Stubborn Grease

For filters that haven't been cleaned in a long time, repeat the soaking process. You can also use a commercial kitchen degreaser spray. Apply it to the filter, leave for 5 minutes, then scrub and rinse.

Putting It Back

Make sure the filter is completely dry before reinserting it. A wet filter inserted back into the rangehood can cause issues with the motor. Once dry, slide or clip it back into place.

When to Replace Instead of Clean

If your aluminium filter is visibly damaged, warped or discoloured to the point it no longer looks metallic, it's time to replace it. Replacement filters for most popular rangehood brands are available online.

Need a new rangehood? Oceania Appliances stocks quality rangehoods across Sydney with free delivery and warranty included.