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How to Clean and Replace Grease Filters in a Cooker Hood​

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How to Clean and Replace Grease Filters in a Cooker Hood

Cooker hoods are essential for maintaining a clean and odour-free kitchen. At the heart of their performance lies the grease filter – a component designed to trap airborne grease particles during cooking. Over time, these filters become clogged with grease and grime, reducing the hood’s efficiency and potentially becoming a fire hazard. Regular cleaning and timely replacement of these filters not only keep your appliance running smoothly but also contribute to a healthier kitchen environment.

So, how often should you clean your cooker hood filters? Ideally, every 1 to 3 months, depending on your cooking frequency. For heavy daily use, monthly cleaning is recommended. Let’s explore how to clean and replace these filters step-by-step.

Types of Cooker Hood Grease Filters

Before getting started, it’s helpful to understand the different types of grease filters you might encounter:

  • Aluminium Mesh Filters: Common and reusable, made of layered mesh that traps grease particles.
  • Stainless Steel Baffle Filters: Found in high-end models, durable and dishwasher-safe.
  • Charcoal Filters: Used in ductless hoods to remove odours. Not washable and should be replaced every 3–6 months.
  • Paper or Foam Filters: Disposable filters used in older or budget models.
 
Types of Cooker Hood Grease Filters​

Tools & Materials You’ll Need

  • Mild washing-up liquid or kitchen degreaser
  • Soft brush or non-abrasive sponge
  • Sink or basin large enough to soak the filter
  • Replacement filters (if applicable)
  • Screwdriver (if required for your model)
  • Microfibre cloth or tea towel
  • Optional: Dishwasher (for mesh or baffle filters)

How to Remove Grease Filters

Safety first – always switch off the cooker hood and unplug it if possible before removing the filter.

  1. Locate the filter – typically found on the underside of the hood.
  2. Look for a release mechanism, such as:
    • Push-button or clip latch
    • Slide-out frame
    • Screws (less common)
  3. Gently remove the filter, taking care not to bend or damage it.
 

Tip: Place a towel on the hob to catch any drips or debris.

How to Clean and Replace Grease Filters in a Cooker Hood​

How to Clean Grease Filters

For Aluminium Mesh or Stainless Steel Baffle Filters:

Method 1: Hand Washing

  1. Fill your sink with hot water and add a good squirt of washing-up liquid or degreaser.
  2. Submerge the filter and let it soak for 10–15 minutes.
  3. Use a soft brush to scrub away grease, paying attention to all corners and layers.
  4. Rinse thoroughly with hot water.
  5. Shake off excess water and leave to dry completely on a towel.

Method 2: Dishwasher

  1. Place the filter on the top rack to avoid damage.
  2. Run a hot cycle without other dishes.
  3. Allow the filter to dry fully before reinstalling.
 

Avoid bleach or caustic chemicals as these can corrode the metal.

 

After Cleaning
Before Cleaning

When and How to Replace Grease Filters

Filters should be replaced if:

  • They are damaged or warped
  • Foam or paper filters have reached their lifespan
  • Aluminium filters remain greasy or discoloured after cleaning

Steps to Replace:

  1. Identify your cooker hood model number (usually on a sticker inside the hood).
  2. Buy the correct filter type and size from the manufacturer or a reputable supplier.
  3. Remove the old filter.
  4. Slot or screw the new filter into place, ensuring it fits securely.
 

Tip: Keep a spare set on hand for hassle-free swapping.

Reinstalling the Filter

    1. Ensure the filter is completely dry.
    2. Align it with the mounting points.
    3. Clip or screw it back into place.

 

Man repairs canopy cooker hood in the kitchen. Replacement filter in a cooker hood.

Maintenance Tips

  • Clean grease filters monthly if you cook frequently
  • Wipe down the cooker hood exterior weekly
  • Replace charcoal or disposable filters as per manufacturer guidance
  • Always run the hood during and after cooking to capture grease and steam
 

Troubleshooting Common Issues

  • Filter won’t come out: Check for hidden clips or refer to the user manual.
  • Clean filter still smells: Soak longer, or try a vinegar solution.
  • Fan performance is weak: May indicate a clogged filter or motor issue.

Conclusion

Maintaining your cooker hood’s grease filters is a simple task that pays off in better air quality, safer cooking, and longer appliance life. With the right approach, tools, and schedule, you can keep your extractor working like new.

Don’t forget to mark your calendar for the next clean, and consider setting reminders to keep your kitchen running efficiently year-round.

Frequently Asked Questions

You should clean your metal grease filters every 1 to 3 months, depending on how often you cook and the type of food you prepare.
Remove the filters and soak them in hot, soapy water or place them in the dishwasher if they’re dishwasher-safe. Dry thoroughly before reinstalling.
No. Carbon filters are not washable. They must be replaced every 3 to 6 months or as recommended by your cooker hood manufacturer.
If the filter is damaged, warped, or still greasy after cleaning, it’s time to replace it. Some hoods also have filter indicator lights.
Grease buildup can reduce extraction performance, create odours, and increase fire risk. Regular cleaning keeps your hood efficient and safe.
Most filters release with a latch or tab. Check your user manual for specific instructions and ensure the hood is off and cool before removing.
You can purchase replacement filters from your cooker hood’s manufacturer, online retailers, or appliance part suppliers. Always check compatibility.
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