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  • Shawn Anderson

How to Clean Restaurant Hood Filters: The Ultimate Guide

Maintaining clean restaurant hood filters is crucial for a safe and efficient kitchen environment. Regular cleaning not only prevents fire hazards but also ensures the ventilation system operates optimally, promoting a healthy workspace for kitchen staff.

The hood filter is a metal square or rectangle that fits into the opening on your Hood Ventilation System, filtering out grease from the smoke rising off your cooking equipment. If this smoke were left unfiltered, it would build up over time in the ventilation system and become a major fire risk.

Benefits of Clean Hood Filters

Clean restaurants hood filters play a vital role in reducing fire risks, enhancing air quality, and prolonging the lifespan of the exhaust system. By conducting routine maintenance, businesses can save on costly replacements and lower energy consumption, ultimately improving operational efficiency and safety standards.

Neglecting their maintenance can compromise your exhaust system's efficiency, lead to increased energy consumption, and even cause damage to the entire system.

Step-by-Step Restaurants Cleaning Guide

Remove the Filter

Before beginning the cleaning process, it's crucial to remove the hood filter from the ventilation system. Carefully take out the filter and inspect it for any signs of damage, such as cracks, holes, or severe deformation. If the filter appears to be in good condition, proceed with the cleaning steps. However, if significant damage is present, it may be necessary to replace the filter to ensure optimal performance and safety.

Prepare a Soaking Station

Find a suitable container, such as a kitchen sink or a large tub, that can accommodate the size of the hood filter. Fill the container with extremely hot water, as heat is essential for loosening the accumulated grease and grime on the filter. The hotter the water, the more effective it will be in breaking down the stubborn deposits.

Create a Natural Cleaning Solution

To create an effective and environmentally friendly cleaning solution, mix 1/2 cup of baking soda with enough dish soap to form a paste-like consistency. Baking soda is a natural abrasive that helps to cut through grease, while dish soap acts as a degreaser, breaking down the oily deposits. This homemade solution is gentle on the environment and safe for use in the kitchen.

Soak the Filters

Add the baking soda and dish soap paste to the hot water in the soaking container. Thoroughly mix the solution to ensure even distribution. Carefully place the hood filter into the container, making sure it is fully submerged in the cleaning solution. Allow the filter to soak for 10 to 15 minutes, as this soaking time is crucial for breaking down the stubborn grease and dirt that have accumulated on the filter over time.

Scrub with a Non-Abrasive Brush

After the soaking period, remove the hood filter from the cleaning solution. Using a non-abrasive cleaning brush, gently scrub the filter to remove any remaining filth and grease buildup. Be thorough in your scrubbing, paying extra attention to the crevices and hard-to-reach areas of the filter. The non-abrasive brush ensures that the filter's surface is not damaged during the cleaning process.

Rinse and Dry

Once the filter has been thoroughly scrubbed, rinse it with clean water to remove any residual cleaning solution and dirt. Make sure to rinse the filter from both sides to ensure that all the debris is washed away. After rinsing, place the filter on a clean, dry surface and allow it to air dry completely before reinstalling it into the ventilation system. Proper drying is essential to prevent moisture from causing corrosion or affecting the filter's performance.

By following these step-by-step instructions, you can effectively clean your Restaurant's Hood Filters, ensuring a safe and efficient kitchen environment. Experience improved air quality, enhanced safety, and prolonged equipment lifespan. Click now to schedule your professional cleaning service and elevate your kitchen standards.

Restaurant's Hood Filters

Maintenance Tips of Restaurants Hood Filters

To keep your filters performing optimally, aim to clean them every 6 to 8 weeks. This routine maintenance will ensure that your filters remain effective and reduce the need for costly replacements. It's also recommended to include filter cleaning as part of thorough hood cleanings conducted by professional hood cleaning services.

  • Regular Inspections

  • Cleaning Frequency

  • Proper Cleaning Techniques

  • Filter Replacement

  • Sizing and Replacement

Types of Hood Filters

Unless your cooking equipment is burning mesquite or some other sort of solid fuel, your hood ventilation system is using a baffle filter. Baffle filters are most commonly made out of one of three types of metal: galvanized, aluminum, and stainless steel. Each type has specific cleaning requirements and durability features to consider for efficient maintenance.

When to Replace Hood Filters

Conduct regular visual inspections of your restaurant’s hood filters. If corrosion, dents, or wear has created holes or disfiguration in the baffles, then it’s time to replace them. It’s important to replace worn hood filters as quickly as possible. Otherwise, grease will build up in the ducting of your ventilation system, and this can pose a very serious fire risk.

Sizing and Replacing Filters

Properly sizing your hood filter is the most important thing you’ll do before ordering a new one. Hood filters are typically sized ½ inch smaller in vertical and horizontal dimensions than the nominal sizes listed for your hood ventilation system. To determine the vertical height of the filter, measure parallel to the baffles from edge to edge.

The horizontal width is the distance from edge to edge perpendicular to the direction of the baffles. To Replace Your Hood Filter, lift the old filter out of the slot rail in which it rests and slide it out. Slide the new filter all the way into the slot opening and then drop the end into the rail. Make sure you insert the hood filter with the baffles in a vertical position.


In conclusion, maintaining clean restaurant hood filters is essential for a safe and efficient kitchen. Prioritize regular maintenance and proper cleaning practices to uphold a healthy workspace and ensure the longevity of your kitchen equipment. By following this ultimate guide, you can enhance safety, improve air quality, and optimize the performance of your ventilation system with ease.

Expert cleaning services from Capital Steam Hood Cleaners can further elevate the cleanliness standards of your kitchen, ensuring a pristine environment for your staff and customers.

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