Step 1: Know Your Filter

Before you start, pop the filter out and inspect it.

Aluminum Mesh (Silver): These are reusable! You can deep clean these following the steps below.

Charcoal Filters (Black/Solid): These are usually found in over-the-range microwaves. These cannot be cleaned and must be replaced.

Step 2: Loosen Grease with Steam

Bring a large pot of water to a boil. Let it simmer under the range hood for about 10 minutes. The steam helps loosen grease buildup on the underside of the hood and the filter.

Step 3: Remove and Inspect the Filter

Most filters slide out or release with a latch. Place yours in the sink and inspect for sticky buildup, discoloration, or trapped food particles.

Step 4: Create a Hot Water Solution

Fill your sink with very hot water. Add a generous amount of dish soap. For extra degreasing power, add white vinegar. Carefully pour in the boiling water from your pot to increase the heat (use caution!).

Step 5: Soak and Scrub

Submerge the filter and let it soak for at least 30 minutes. Use a non-abrasive brush or sponge to scrub away grease in circular motions. Avoid abrasive cleaners like baking soda if the finish is delicate.

Step 6: Dry and Reinstall

Pat the filter dry with a microfiber cloth and allow it to air dry completely. Reinstall the filter securely back into the hood.

Pro Tip: The Monthly Maintenance

Once you’ve finished this deep clean, you don’t have to do it every time. Casey recommends tossing your metal filters in the dishwasher once a month on a hot cycle to keep them grease-free year-round.