Keeping your commercial deep fryer clean is essential for maintaining high food quality and ensuring the safety of your kitchen. Regular and thorough cleaning not only extends the life of your commercial deep fryer but also helps prevent cross-contamination and health hazards. 



In this post, Industry Kitchens walks you through the best ways to clean a deep fryer so it runs at top efficiency. Whether you've recently purchased a new fryer or have been using one for years, these tips can help you keep your kitchen clean and safe.



Commercial deep fryer ready for cleaning, showing the heating element underneath.

Tools and Equipment Needed When Cleaning a Deep Fryer

Proper cleaning of your commercial deep fryer requires the right tools and equipment to ensure thorough and safe maintenance. Here’s a list of the essential things you'll need:



Heat-resistant gloves: These are essential for protecting your hands from hot oil and surfaces. Handling a fryer can expose you to high temperatures, so a sturdy, heat-resistant glove is a must.



  • Protective apron and goggles: Shield yourself from splashes and spills of hot oil with a protective apron and goggles. Safety gear is essential if you want to prevent burns and eye injuries while cleaning.

  • Oil filter or strainer: Use an oil filter or strainer to remove food particles from your used oil. This tool helps you recycle oil effectively and keeps your fryer running smoothly by preventing clogging.

  • Metal spatula or scraper: A metal spatula or scraper is perfect for removing hardened debris from your fryer’s interior. It helps you get rid of tough, stuck-on food particles that regular cleaning tools can't handle.

  • Commercial-grade degreaser: Designed to cut through tough grease and oil residue, a commercial-grade degreaser is your best friend when dealing with a greasy fryer. Make sure it's suitable for use in food service environments.

  • Brushes: Keep a variety of brushes on hand, including long-handled ones for cleaning hard-to-reach areas. Brushes are essential for scrubbing away grease and debris from every nook and cranny of your fryer.

  • Sponges and scouring pads: You should use non-abrasive sponges and scouring pads to avoid scratching the fryer’s surface. They’re great for gentle but effective cleaning of both the interior and exterior of the fryer.

  • Bucket or oil disposal container: Have a bucket or oil disposal container ready for safely collecting and disposing of your used cooking oil. Proper disposal of fryer oil is essential for both safety and environmental reasons.

  • Hot water and mild detergent: For general cleaning of removable parts, hot or warm water and mild detergent or dish soap are essential. They will help you break down grease and clean components without causing damage.

  • Rags or paper towels: Use a rag, damp cloth, or paper towel for drying and polishing your fryer after cleaning. Make sure all parts are thoroughly dried to prevent any water from coming into contact with hot frying oil during the next use.



Having these tools on hand will make the cleaning process more efficient and effective, helping you maintain your deep fryer in top condition. Investing in the right equipment not only ensures a thorough cleaning but also extends the life of your fryer, keeping your kitchen running smoothly.



Two commercial deep fryers, ready for use in a professional kitchen.

How to Clean Your Commercial Deep Fryer the Right Way

Properly cleaning your commercial deep fryer is crucial for maintaining food quality and kitchen safety. Here’s a step-by-step guide on how to clean a deep fryer to ensure your fryer is cleaned thoroughly and effectively.

Safety Precautions

Before you start cleaning, ensure that your deep fryer is turned off by checking its power supply or gas supply inlet. Then, let it cool down to a safe temperature.

Wear heat-resistant gloves, a protective apron, and goggles to protect yourself from hot oil and cleaning chemicals. Also, make sure that the area around your fryer is clear to avoid possible accidents.

Oil Removal and Storage

Once your commercial deep fryer has cooled down to a safe handling temperature, you can begin the oil removal process. 



First, remove any holders or baskets in your fryer. Carefully use a spigot or drain valve to transfer the oil into a bucket, disposal container, or an oil filter. 



If the cooled oil removed is still in good condition, you should filter it to remove any food particles or impurities and then store it in a clean container for reuse. This not only saves costs but also ensures that the filtered oil is ready for the next cooking session. 



A commercial deep fryer basket.

Fryer Basket Cleaning

When cleaning your frying basket, start by removing and placing it in a sink filled with hot water and a mild cleaning solution. Let them soak for a few minutes to loosen any stuck-on grease and food particles.

Next, use a brush or sponge to scrub away all grease and residue, making sure to reach all the nooks and crannies. Once thoroughly cleaned, rinse the baskets with hot water to remove any remaining detergent.

Finally, allow the baskets to air dry completely before putting them back into the fryer. This process ensures your fryer baskets are clean and ready for the next use, promoting better food quality and kitchen cleanliness.

Cleaning the Fryer Interior

After the oil and baskets have been dealt with, it is now time to clean your deep fryer tank. Begin by using a metal spatula or scraper to remove any hardened grease and debris from the fryer's interior. Make sure to scrape thoroughly, reaching into all corners to ensure no residue is left behind.



This initial cleaning of the interior helps to clear out any residue, making the degreasing process more effective. Next, put a commercial-grade degreaser on all interior surfaces, paying special attention to areas with grease buildup.



Allow the degreaser to sit for a few minutes to break down the grease. Then, use brushes and scouring pads to scrub the interior thoroughly, ensuring that all grease and grime are removed. Finally, rinse the interior to wash away all traces of the degreaser and any remaining residue.



Stainless steel commercial deep fryer with an organized setup, ready for cooking.

Boiling Method For Thorough Cleaning

For a deep and thorough cleaning of your commercial fryers, the boiling method is highly effective. Start by filling the deep fryer with water up to the maximum oil line and adding a recommended amount of mild deep-fat fryer cleaner detergent to the water.



Turn on your fryer and bring the soapy water to a boil. Let it boil vigorously for about 10–15 minutes. This boiling action helps to loosen and dissolve any stubborn grease and residue clinging to the fryer's interior surfaces.



After boiling, let it cool down first before carefully draining the solution. Rinse the fryer thoroughly with water to wash away any detergent residue and remaining grease particles. This final rinse ensures that your fryer is clean and ready for use.

Final Cleaning and Drying

Finalising the cleaning process of your fryer involves thorough surface wiping and drying to ensure optimal performance and longevity. You must use rags or paper towels to wipe down all surfaces, including the exterior of the fryer, removing any remaining traces of oil or cleaning solutions.



You must also pay attention to detail, as a clean exterior enhances the kitchen's overall appearance and hygiene. After wiping down, ensure all components, including the interior and baskets, are completely dry before reassembling the fryer.



Moisture left behind can lead to fresh oil splatters and affect food quality during subsequent use. By diligently drying all parts, you maintain a clean and safe kitchen environment, ensuring your fryer operates at its best for each cooking session.

How Often Should You Clean Your Commercial Deep Fryer?

The frequency of cleaning your commercial deep fryer depends on how frequently it is used and the type of food being cooked. Here are some guidelines that can help you determine the best cleaning schedule for your fryer:



  • Daily Cleaning: At the end of each day, do a quick clean-up. This includes draining and filtering the oil, wiping down the exterior, and cleaning the fryer baskets. Daily cleaning helps to minimise oil buildup and guarantees that your fryer is ready to use the next day.

  • Weekly Cleaning: Once a week, you must perform a more thorough cleaning. This includes draining the oil completely, cleaning the fryer interior, and using a commercial-grade degreaser to remove stubborn grease and residue. Also, clean the heating elements and inspect for any signs of wear or damage.

  • Monthly Deep Cleaning: You should schedule a deep cleaning session once a month. This involves using the boiling method to thoroughly clean the fryer interior, removing and cleaning all removable parts, and checking the oil filtration system. This deep clean ensures the fryer operates efficiently and prolongs its lifespan.

  • After Heavy Use: If your fryer is used heavily or for cooking particularly greasy or breaded foods, consider cleaning it more frequently. Grease and food particles can accumulate quickly, affecting the quality of your food and the performance of the fryer.

By following these cleaning schedules, you can maintain a clean and efficient commercial deep fryer, ensuring your kitchen runs smoothly and your food remains high-quality.

Conclusion

Maintaining a clean commercial deep fryer is essential for the smooth operation of any kitchen. Regular cleaning not only extends the life of your equipment but also ensures the quality and safety of the food you serve. 



By following the best practices listed in this guide, you can keep your deep fryer in top condition, providing your customers with consistently delicious fried foods. A well-maintained fryer also reduces the risk of accidents and downtime, allowing your kitchen to run efficiently and safely. 



So, make cleaning a routine part of your kitchen operations, and you'll reap the benefits of a cleaner, more productive workspace.

Frequently Asked Questions

How do you remove oil from a commercial deep fryer?

To remove oil from a commercial deep fryer, first, turn off the fryer and allow the oil to cool to a safe handling temperature. Use the spigot or drain valve to carefully transfer the oil into a disposal container or an oil filter if you plan to reuse it. Make sure to wear heat proof gloves and protective gear during this process to avoid burns.

How to drain a commercial fryer?

Draining a commercial fryer involves turning off the fryer and allowing the oil to cool completely. Open the drain valve or spigot to let the oil flow into a suitable container. If your fryer has a built-in filtration system, use it to filter the oil before disposal or storage. Always follow the manufacturer's instructions for draining and handling the oil safely.

What removes grease from a deep fryer?

To remove grease from a deep fryer, use a commercial-grade degreaser specifically designed for kitchen equipment. Apply the degreaser to all greasy surfaces, let it sit for the recommended time, and then scrub with brushes or scouring pads. Rinse thoroughly with hot water to remove all traces of the degreaser.

What chemicals are used to clean deep fryers?

Chemicals commonly used to clean commercial fryers include commercial-grade degreasers and mild detergents. These products are formulated to break down tough grease and remaining oil residues. Always use cleaning chemicals that are safe for food service equipment and follow the manufacturer's instructions for use.



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