How to Clean Metal Range Hood Filters

Metal Range Hood Filters: Aluminum Mesh vs. Stainless Steel Baffle

Metal range hood filters come in two main types, each with slightly different cleaning considerations:

• Aluminum mesh filters: Thin, lightweight, accordion-style mesh. Very common in standard range hoods. Dishwasher-safe in most cases. Can discolor with very harsh chemicals.
• Stainless steel baffle filters: Heavier, with curved baffles that direct grease into a collection channel. Found in professional-style and higher-end range hoods. More durable, handle stronger degreasers well.

Both types are washable and reusable — the cleaning methods are similar, with minor differences noted below.

What You'll Need

• Zep Heavy-Duty Citrus Degreaser Concentrate — most effective for baked-on grease
• Dawn Platinum Dish Soap
• Rubber cleaning gloves
• Baking soda
• Large basin or sink
• Stiff-bristle brush
• Boiling water

Cleaning Aluminum Mesh Filters

Method 1: Boiling Water Soak (Regular Maintenance)

1. Remove the filter from the range hood.
2. Place in a large sink or basin.
3. Pour boiling water over the filter to melt surface grease.
4. Add dish soap and ¼ cup baking soda.
5. Soak 15–20 minutes.
6. Scrub with a stiff brush, working through the mesh channels.
7. Rinse under hot running water.
8. Dry completely before reinstalling.

Method 2: Dishwasher (Easiest)

1. Confirm dishwasher-safe in your manual.
2. Place on the bottom rack.
3. Run the hottest, heaviest cycle.
4. Inspect and repeat if needed.
5. Dry completely.

Note for aluminum: Avoid very alkaline dishwasher detergents or prolonged soaking in strong alkaline solutions — they can cause aluminum to darken. This is cosmetic only and doesn't affect function.

Method 3: Zep Citrus Degreaser (Heavy Buildup)

1. Dilute Zep Citrus Degreaser 1:6 with hot water.
2. Soak the filter for 20 minutes.
3. Scrub and rinse thoroughly.

Cleaning Stainless Steel Baffle Filters

Baffle filters are more robust and handle stronger cleaning solutions:

Method 1: Zep Citrus Degreaser Soak (Best Method)

1. Fill a basin with hot water.
2. Add Zep Citrus Degreaser at 1:4 ratio for heavy buildup.
3. Submerge the baffle filter completely.
4. Soak for 20–30 minutes.
5. Scrub the baffles and channels with a stiff brush.
6. Rinse thoroughly under hot water.
7. Dry completely.

Method 2: Dishwasher

Stainless steel baffle filters are generally dishwasher-safe and handle the dishwasher better than aluminum. Run on the hottest cycle.

Emptying the Grease Collection Cup

Baffle filters often have a grease collection cup or channel at the bottom:

1. Remove and empty the cup into the trash — never down the drain.
2. Wash the cup with dish soap and hot water.
3. Dry and replace.

How Often to Clean Metal Filters

• Light cooking: every 2–3 months
• Regular cooking: monthly
• Heavy frying: every 2–3 weeks

Final Thoughts

Metal range hood filters are designed to be cleaned and reused indefinitely. Boiling water and dish soap handle regular maintenance; Zep Citrus Degreaser tackles heavy buildup; the dishwasher makes monthly cleaning effortless. Keep them clean and your range hood will capture grease and odors at full efficiency.