How to Clean a Commercial Deep Fryer


Maintaining cleanliness and hygiene in a commercial kitchen is of utmost importance, especially when it comes to equipment like deep fryers. Commercial deep fryers are essential for many food establishments, providing crispy and delicious fried foods. However, regular cleaning is crucial not only for maintaining hygiene standards but also for extending the lifespan of the equipment.

In this blog, we aim to provide step-by-step instructions & provide you with the best way to clean a deep fryer effectively. By following these instructions, you can ensure that your deep fryer remains in optimal condition, producing high-quality fried foods while prioritizing the health and safety of your customers.

So, let’s dive in & find out how to clean a commercial deep fryer. 

Understanding the Components of a Commercial Deep Fryer

Here are the commercial deep fryer parts you should know before you start the cleaning process:

Fryer Basket: The fryer basket is a removable metal basket that holds the food being cooked. It typically features a handle for easy lifting and lowering into the oil. The basket allows the oil to drain away from the food once it is cooked, preventing it from becoming greasy.

Heating Element: The heating element is responsible for generating and maintaining the desired temperature of the oil. It is usually located at the bottom of the fryer and is powered by electricity or gas. The heating element must be kept clean and free from any obstructions to ensure even heating and efficient operation.

PartsFe is your one-stop solution to buy commercial cooking appliance parts. We offer a wide range of commercial deep fryer parts such as fryer baskets, control panels, thermostats, etc from top-selling brands at competitive prices.

Oil Reservoir: The oil reservoir is where the cooking oil is stored. It is a deep well or tank that can hold a significant amount of oil. The capacity of the oil reservoir varies depending on the size and model of the fryer. It is important to regularly monitor the oil level and quality to ensure optimal frying results.

Control Panel: The control panel is the interface that allows users to adjust and monitor the fryer’s settings. It typically includes temperature controls, timers, and power switches. Some advanced models may have digital displays and programmable settings for precise cooking control. Familiarize yourself with the control panel’s functions to operate the fryer efficiently and achieve desired cooking results.

Thermostat: The thermostat is a vital component that regulates the temperature of the fryer. It ensures that the oil remains at the desired temperature throughout the cooking process. Proper calibration and regular maintenance of the thermostat are essential for accurate temperature control.

Drain Valve: The drain valve is used to empty the oil reservoir when it needs to be changed or cleaned. It is usually located at the bottom of the fryer and may be operated manually or electronically. Take caution when using the drain valve to avoid spills or injuries.

Filtration System (optional): Some commercial deep fryer come equipped with a built-in filtration system. This feature helps remove food particles and debris from the oil, extending its lifespan and maintaining frying quality. If your fryer has a filtration system, it is crucial to understand its operation and cleaning procedures.

How Often Should You Clean a Commercial Deep Fryer?

Cleaning a fryer is essential for maintaining its efficiency and extending its lifespan. The frequency of cleaning depends on the usage and the type of food being cooked. As a general rule, it is recommended to clean the fryer at least once a week. However, if your fryer experiences heavy usage or if you frequently cook foods with high-fat content, such as french fries or battered items, it may require more frequent cleaning.

Gathering the Necessary Supplies for Deep Fryer Cleaning

Gather the below-listed cleaning Supplies for deep fryer cleaning:

Gloves: Ensure to wear heat-resistant gloves to protect your hands from hot surfaces and chemicals.

Goggles: Wear safety goggles to shield your eyes from splashes or fumes during the cleaning process.

Cleaning Brush: Select a brush specifically designed for deep fryer cleaning to effectively scrub away grease and residue.

Degreaser: Choose a suitable degreasing agent or commercial deep fryer cleaner to break down tough grease buildup.

Scrub Pads: Have a few non-abrasive scrub pads on hand for gentle yet effective scrubbing of the fryer surfaces.

Towels: Keep a supply of clean, absorbent towels to wipe away excess moisture and oil.

Additional Safety Equipment required for deep fryer cleaning includes:

Apron: Consider wearing a protective apron to shield your clothing from oil splatters and stains.

Non-slip Shoes: Wear slip-resistant shoes or footwear with good traction to prevent accidental slips or falls on greasy surfaces.

Fire Extinguisher: Have a fire extinguisher nearby as a precautionary measure in case of any unexpected fire hazards.

Heat-resistant Container: Prepare a heat-resistant container or bucket to safely dispose of used oil or grease after cleaning.

A Step-by-Step Guide to Deep Fryer Cleaning

To ensure the longevity and optimal performance of your commercial fryer, proper cleaning is essential after each messy use. A dirty fryer not only affects the taste of the food but also shortens the equipment’s lifespan. Let’s explore the best way to clean a deep fryer, known as the “boil-out” process, through five simple steps.

Step 1: Power Off and Cool the Oil

Start by turning off the power to the deep fryer, either by closing the gas supply or unplugging it. Allow the oil to cool down to a temperature of 150 degrees Fahrenheit or lower.

Step 2: Drain Oil and Clean the Interior

Once the oil has sufficiently cooled, drain it into a suitable container for proper disposal or recycling. Remove any baskets or holders from the fryer. Utilize a cleaning rod or scraper to eliminate built-up residue from the interior walls, corners, and base. Thoroughly brush, wipe, and rinse away any debris.

Step 3: Apply Water and Cleaner to Soiled Areas

Fill the deep fryer tank up to the designated level line with cool, clean water. Add an appropriate cleaning solution to the water, which will help loosen heavily baked-on grease or oil.

Step 4: Heat and Boil the Water

Switch on the fryer to heat the water and bring it to a boil. Allow the water and cleaning solution to boil for a minimum of 10 minutes. For heavily soiled fryers, a boiling time between 15 and 20 minutes is ideal.

Step 5: Cool Down, Drain, and Thoroughly Rinse

Once the appropriate boiling time has elapsed, turn off the fryer and let the water cool down completely. Slowly drain the cleaning solution while using a brush to clean the sides and heating elements of the fryer. Rinse the fryer thoroughly with hot water to eliminate any remaining residue or cleaning chemicals. Ensure the basin, baskets, and frying utensils air dry before adding fresh oil for future use.

Deep Fryer Maintenance Tips

Given below are the deep fryer maintenance tips you should follow to prolong the life of your fryer, ensure food safety, and maintain the quality of fried dishes:

  • Cleanliness is crucial: Regularly clean the fryer to remove built-up grease and food debris. Use a fryer brush or a non-abrasive sponge to scrub the interior and exterior surfaces.
  • Oil filtration:Filter the oil regularly to remove impurities and extend its lifespan. This helps maintain the quality of fried food and prevents oil breakdown.
  • Monitor oil temperature: Ensure the fryer operates at the recommended temperature range to avoid overheating or undercooking. Use a reliable thermometer to monitor oil temperature accurately.
  • Routine inspections:Conduct thorough inspections to check for any signs of wear, leaks, or malfunctioning parts. Promptly address any issues to prevent further damage and ensure safe operation.
  • Preventative maintenance: Follow manufacturer guidelines for regular maintenance tasks such as lubricating moving parts, replacing worn-out components, and inspecting gas or electrical connections.

Maintaining a clean commercial deep fryer is essential for ensuring food quality, preventing cross-contamination, and prolonging the appliance’s lifespan. Regular cleaning routines listed above will help to keep the deep fryer in optimal condition, promoting a safe and hygienic cooking environment.

Frequently Asked Questions

What is the best thing to use to clean a deep fryer?

The best thing to use to clean a deep fryer is a mixture of hot water, dish soap, and a non-abrasive sponge or cloth.

How do you remove hard grease from a deep fryer?

To remove hard grease from a deep fryer, you can use a commercial degreaser or a mixture of baking soda and water. Scrub the greasy areas with a sponge or brush, then rinse thoroughly.

How long does it take to clean a commercial deep fryer?

Grease Cycle professional grease cleaning services advises that the time it takes to clean a commercial deep fryer can vary depending on the size and level of grease buildup. On average, it may take around 30-60 minutes to thoroughly clean and degrease a deep fryer.

What chemical is used to clean the deep fryer?

Restaurants often use commercial deep fryer cleaners that contain alkaline or caustic chemicals, such as sodium hydroxide or potassium hydroxide, to clean deep fryers effectively. These chemicals help break down and remove stubborn grease and carbon deposits.

How do restaurants clean fryer oil?

Restaurants typically clean fryer oil by employing a process called “filtering.” This involves using a filtration system or specialized equipment to remove debris, food particles, and impurities from the oil. Additionally, regular oil testing and scheduled oil changes are performed to maintain the quality of the fryer oil.