Used kitchen oil: 5 easy and safe ways to reuse it in your home

Used kitchen oil: 5 easy and safe ways to reuse it in your home

August 11, 2025 – 17:00

This ingredient can be harmful if it is reused to cook several times that is why there are other alternatives to recycle it.

He kitchen oil It is an essential element in most Argentine households. However, its incorrect disposition generates serious environmental consequences. A single liter of used oil can contaminate up to 1,000 liters of wateraccording to data from the Ministry for Ecological Transition of Spain. In Argentina, a report from the National University of La Plata warns that the discharge of drain oil obstructs pipes and collapses sewage systems.

The United Nations Food and Agriculture Organization warned of the impact of kitchen waste on biodiversity. Given this panorama, the recycling of used oil can be a sustainable and economic alternative. There are multiple ways to transform this daily residue into useful resources for the home.

Kitchen oil, especially sunflower or corn, is not designed for multiple uses. Excess reuse generates toxic and carcinogenic compounds. Experts recommend Do not use it more than three times to cook. Olive oil supports up to five uses, provided that it is adequately filtered. Signals such as color change, foam, rancid smell or thick texture indicate that it is no longer suitable for consumption.

Palta oil

5 creative uses to recycle kitchen oil

These alternatives allow a second life to the used kitchen oil, reducing waste and generating home savings. Each option contributes to a more sustainable and conscious lifestyle of the environmental impact.

Make homemade soap

Artisanal soap constitutes one of the most useful ways to take advantage of used oil. The traditional recipe combines filtered oil, caustic soda and water. Lemon zest or essential oils can be added to aromatize. The process requires caution with caustic soda, using gloves and eye protection in an ventilated environment. The mixture is poured into molds and the soap needs to be cured between three and four weeks. The result is an economic product to wash clothes, utensils or surfaces.

Make candles or torches

With filtered oil, a glass jar, a cotton wick and essential oilshomemade candles can be created. For exterior torches, a perforated metal lid is recommended where to pass the wick. These candles effectively burn and provide decorative warmth to the home. The torches can last hours and recharge easily, resulting ideal to illuminate balconies, patios or terraces.

Lubricate hinges and hardware

Used oil serves as Domestic lubricant for hinges, locks or bolts with friction. Although it does not replace mineral oil, it is practical in emergencies. A small amount is applied with a syringe or cotton at contact points. It is essential to previously strain the oil to avoid introducing impurities into the mechanisms.

Protect and shine to wood

Wood without varnish, such as garden furniture, benefits from a fine layer of used oil. Applied with brush or cloth, nourishes the surface and protects it from moisture. This application is recommended twice a year, especially outdoors where the sun wears the wood. Olive oil is particularly effective, although its aroma can be intense indoors.

Prepare natural exfoliants

A mixture of ground coffee and filtered oil creates a Exfoliating paste ideal to remove dead cells. This homemade and ecological option serves for body and face, according to coffee thickness. It is applied with circular massages and removed with warm water and soap, leaving soft skin. You can also use sugar or sea salt as an alternative to coffee.

Source: Ambito

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