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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.

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.

Locate the filter – typically found on the underside of the hood.
Look for a release mechanism, such as:
- Push-button or clip latch
- Slide-out frame
- Screws (less common)
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 Grease Filters

For Aluminium Mesh or Stainless Steel Baffle Filters:

Method 1: Hand Washing

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

Method 2: Dishwasher

Place the filter on the top rack to avoid damage.
Run a hot cycle without other dishes.
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:

Identify your cooker hood model number (usually on a sticker inside the hood).
Buy the correct filter type and size from the manufacturer or a reputable supplier.
Remove the old filter.
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.

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.