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The Eco-Friendly Guide: Sustainable Ways to Dispose of Cooking Oil -2024

Cooking oil is used in daily basis in every household. Usually, no cooking is possible with out the oil. Traditional way to drain used oil in toilet & sink not good practice and  not a recommended way according to city and municipal laws

But why there is lots of question when disposing cooking oil? why we cannot drain it out simply in kitchen sink drain? We will find out the everything about dispose of cooking oil in this article briefly.

Everest Plumbing Jun 27, 2024
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Why can’t we drain cooking oil simply in kitchen sink ?

There are number of thing that cannot flush into our drain system,  cook oil is one of the top listed thing. Draining out cooked oil to drain is not recommended as it direct impact your flow of drain. The Main and foremost reason is Drain clogging. Any oily or grease substance that go on the drain are primary cause of kitchen sink drain clogged.

Cooking oil easily get solidify and congeal when it cools down or over the long time, which lead to blockage in pipes. Overtime, oil get accumulate and can cause serious drain issue.

Cooking oil not only impacts the kitchen sink drain, but it can also significantly increase the risk of clogging the main drain line.

As day-to-day Plumbers in Toronto, we’ve observed that 90% of kitchen sink drain lines become clogged due to grease buildup resulting from daily disposal of cooking oil.


Environmental impact is another reason for not allowing dispose of cooking oil in drain, as it negatively affects sewage treatment processes and poses a threat to aquatic ecosystems.

Many municipalities Like Toronto have strict rules and regulations prohibiting the draining of cooking oil mainly for Restaurant and food service business due to the potential for drain clogs and environmental damage. Violating these regulations can result in fines and penalties.

What are eco-friendly and sustainable way to dispose of cooking oil?

There are variety of methods for disposing of cooking oil responsibly. From recycling to reusing, we will explore different eco-friendly options for dispose of cooking oil that will allow you to make the most of your used cooking oil. So, let’s begin our journey towards a greener and more sustainable kitchen!

best way to save drain from kitchen cooking oil and its preventative method
Eco-friendly and sustainable way to dispose of cooking oil
  • Reuse:
    Excess oil from deep frying can be reused for future cooking. The number of times cooking oil can be reused depends on the type of ingredients and fats used to make that oil. Sealing cooking oil tightly in a container for future use is considered a healthy habit.
    Cooking oil can also be used for other different household works, including lubricating old rusted gates, locks, tight bolt ( as WD-40), jam handle and polish old leather and shoes.
  • Making Soap & Insecticide:
    Fat is required to make a soap. Fat from cooking oil can be another way to reuse.
    Cooking oil can also be reused to make nontoxic insecticide or weed killer if you love gardening. There are numerous DIY ideas available online for creating insecticides at home using excess oil. One example involves mixing oil with dish soap, salt, and water, then storing the mixture in a spray bottle over time.
  • Solidify and Disposal:
    Oil can be disposed of like other garbage and organic waste, but it’s important to follow local laws and regulations before doing so. Every municipality have plan and regulations regarding garbage and waste disposal. Once the oil complete use and reuse, you can freeze it or use bio friendly agent solidify then you can put in green Organic bin if you are in Toronto or refer to local municipal waste management plan . If you have oil in large amount., there are disposal site planned by city where you can easily drop off then from there city will handle in environmental way. If you check your nearest location if you live in Toronto, Toronto oil disposal location
  • Grease trap or oil container:
    Setting up Grease trap interceptor or oil trap interceptor can be another way to collect the oil. Grease trap interceptor help separate the oil, water and other kitchen waste keeping the water flow smooth. Once the grease trap is full you can simply call local trap cleaner or again can be drop off to nearest drop of location. This method is quite costly, but effective way to dispose the oil.
    Grease trap interceptors are mandatory for food service businesses such as restaurants, hotels, and fast-food services because they use large amounts of oil daily.
    There are several method to deal with grease built up in kitchen sink drain, we have discuss it briefly in this separate blog.
  • Biodiesel or biofuel:
    Oil can be used to create biodiesel and biofuel, which requires significant chemistry knowledge and processes. However, a practical approach is to sell excessive household oil to local companies that specialize in biofuel production. This not only provides a constructive chore for children but also helps them earn pocket money.
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What if you used to drain down the oil on daily basis ?

Number of residents in Toronto don’t dispose use oil properly. Everybody is habit of dumping in sink drain which is/was never a recommend method. So if you are the one on same path, here are some way to overcome kitchen sink clogged risk.

  • Fill the sink with hot water and release it with full pressure once it’s filled every night after finishing kitchen work. This will help to clear out oily grease settle in the line.
  • If you experience frequent clogs in your kitchen sink, drain snaking can be a first option. It can be done DIY or you can hire a professional like us in the Greater Toronto area. However, if there is calcified or solidified grease inside the drain line that is difficult to break up with drain snaking, a High-pressure power flush from a professional is recommended in this situation.
clogged kitchen sink drain line and drain backup
Need Help with Clogged Kitchen Sink

In conclusion, proper disposal of cooking oil is essential for maintaining a healthy environment and sustainable waste management practices. By understanding the environmental impact of cooking oil disposal, individuals can make informed choices that minimize pollution and protect ecosystems.

Recycling cooking oil for biodiesel production, proper storage and transportation of used oil, and utilizing local resources for recycling are effective ways to promote eco-friendly cooking oil disposal. Embracing eco-friendly practices for cooking oil disposal not only benefits the environment but also helps individuals save money, preserve natural resources, and support renewable energy initiatives.

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