How to Filter Deep Fryer Oil to Reuse and Don’t Waste Them

I enjoy deep frying meals. The ice cream machine is set aside when it’s chilly outside, and the deep fryer is brought out. French fries, doughnuts, fried Snack items, anything tempura. It’s all fantastic. But what isn’t astonishing is how costly peanut oil is. To extend the life of a batch of cooking oil, I must remove as many food particles as possible before using it. Now we explain How to Filter Deep Fryer Oil.

Using gelatin to purify old deep-frying oil is the quickest and easiest approach I’ve come across. It needs no metal strainers, espresso filters, or considerable clean-up, and it’s far less messy than any other method. The instructions are at the bottom of the page for those who are short on time, but if you’d want additional information about the tests, please continue reading.

When Do I Replace the Oil in Deep Fryer

The amount of time you can store oil in a deep fryer depends on various factors, including how often you’ve used it, how good the oil is, and how well you keep it clean. Even if there isn’t a hard and fast rule, it’s easy to figure out how often you should swap out the oil in your deep fryer.

When Should I Change the Oil in My Deep Fryer

When using a deep fryer, you should change the oil when the following conditions are met:

  • At temperatures that are lower than typical, it starts to burn.
  • Diminishes in color
  • Starts to have an unpleasant odor
  • At the surface, it thickens and foams up.

Your oil is no longer useable if any of these indicators appear. As a result, you should not wait for any of these symptoms to appear before changing your oil. If any of these changes occur, your oil may become hard or even dangerous to use.

How To Filter Deep Fryer Oil

How to Filter Deep Fryer Oil 

  • Once you’ve finished frying for the day, remove any big chunks in the oil.
  • Temperature range: 150-170°F (65-75°C)
  • An espresso filter or cloth can be rolled over the rim of a mason jar to create an airtight seal for the liquid.
  • Ensure the ring is snug enough to hold the cotton or paper coffee filter in place.
  • Using the ring hole, carefully pour heated oil into the filter, cautious not to overfill. After some time, the oil will have passed. Take care; the oil still seems to be hot enough to burn.
  • Whether you’re deep-frying, simmering, seasoning a pan, or just using it as a lubricant, keep your oil in the refrigerator until you’re ready to use it.

What is the Advantage of Oil Filtration

The deep fryer has become an indispensable piece of commercial kitchen equipment. Fried chicken, fish and chips, shrimp tempura, wings, French fries, onions rings, calamari, and doughnuts are all examples of fried meals. And those are only a few examples! If you’re looking for fried food, chances are there’s a restaurant near you serving all of these and more.

 If you own or operate a restaurant, you almost certainly have at least 1 deep fryer in the kitchen. If your restaurant has a deep fryer on hand, are you obtaining the most out? Ensure that your fryers are producing the greatest possible product. The value of your frying investment should be maximized.

The quality of your cuisine and profit margins will deteriorate if you don’t filter the oil you use. One of the essential things you can do to ensure the quality and revenue of your fried dishes is to use oil filtering. 

How can an Oil Filter Help to Maintain the Freshness of Your Meals

We need to know how fryer oil decreases overtime for this question. Water, air, sand, and heat are the four primary drivers of oil deterioration.

In the first place, ice particles from frozen food are the most common method water enters fryer oil. As food cooks, it will also lose some water content, especially if it has been marinated excessively. Unlike oil, which has a higher boiling point, water is extremely detrimental to fryer oil. Second, when the oil lies out in the open, the oxidation process destroys it.

It’s also possible for food particles to remain in the oil, resulting in off-flavors, smells, and discoloration. When it comes to oil quality, it’s all down to how much heat the fryer generates over time. Fryer heat causes the oil to smoke and degrade, which decreases its smoke point over time.

Keep in mind that oil is a nutrient. Starting with the greatest product possible is important, but your food’s quality is limited by the oil you use. Fried goods taste and smell unpleasant when cooked in oil that’s been burned or deteriorated. Furthermore, it’s less effective than pure oil.

The breading or crust on food does not crisp up as rapidly when fried in oil that has gone bad, and the food absorbs more oil. Instead of a golden brown crisp, what you get is a darkish, oily mess. Cleaner oil means better food; therefore, it’s important to filter your oil consistently.

How Does Using Oil Filtration to Reduce the Costs

Depending on how often you use them, a considerable percentage of your food budget might be eaten up by fryer oil. Using a commercial kitchen as an alternative, they don’t filter their oil and have to change it twice per week. It costs $100 a week to run a fifty-pound fryer at $1.00 per kilogram of oil.

 One fryer costs $5,200 a year; multiply it by 12 months, and you get $5,200! According to research by large commercial fryer producers, constant oil filtering may cut the running costs of a deep fryer by 35 percent or more. A reduced running cost of 35% is a yearly benefit of $7,280 for a restaurant using four 50-pound fryers and using the same calculations.

Some Additional Tips for Oil Filtration Quality

  • However, filtering your oil is not the only thing you do to get the most for it. 
  • You may improve your results by taking a few additional, straightforward measures. It is recommended that you filter your oil no more than once each day in order to maximise its quality and extend its shelf life.
  • It’s also a smart option to filter your fryers regularly if you’re using them. 
  • The oil temperature should be checked daily, and the temperature of the fryers should be calibrated routinely to avoid overheating the oil. To keep your fryer from overheating when it is not in use, keep the temperature at 300°F or below when it is not in use. 
  • Keep your frying pots closed overnight to prevent the oil from oxidizing.


Can I Use Coffee Filters to Filter Cooking Oil?

To save money, coffee filters work just as well as hand towels in soaking oil. The next time you cook up a batch of empanadas, use a layer of espresso filters to absorb any extra oil 

How Often Should You Filter Fryer Oil?

Preparing frozen food for cooking by removing tiny particles. Debris may be reduced by not soaking food in the oil in a deep fryer. It’s best to filter your oil at a minimum once a day and more frequently if required.

Is Filtering Fryer oil Worth it?

Filters for deep-fryers help keep food particles from catching fire and contaminating your oil. You’ll save a great deal of money if you filter your oil every day, since it will last twice as much time. Filtration improves the flavor of food as well.


Keeping a corporate deep fryer’s filters cleaned is an essential component of running and maintaining the appliance, and it doesn’t have to be a pain. The boiling oil in a deep fryer may burn even the most careful user, so it’s imperative that anybody using or cleaning one exercise extreme caution.