Learn how to make your yellowed plastic objects white again

Do you have a few plastic objects that have gone from white to yellow? Get them back to their original colour now!


All objects end up being subject to signs of time. Plastic is no exception to this rule. The more time that passes, the more plastic objects have a tendency of changing colours, especially objects that are white. They change from white to yellow. Thankfully, you can reverse this process with the help of a few clever remedies. You can get rid of yellow stains on your plastic objects without too much work. Here are a few technics to achieve this.

10. Try a cleaning formula

Here is what you need to create this at-home product


  • A solution of hydrogen peroxide. The higher the concentration, the quicker the reaction: 12% is good but at 6% the product reacts slower.
  • About 1,5 millimeters of remover by the liter. The concentration can vary depending on the product you use.
  • A sufficient amount of UV light source.
  • A thickener (like cornstarch).

We suggest you take certain precautions while using this mixture: Hydrogen peroxide can be harmful to your skin and can damage your eyesight if it gets in contact with your eyes. Wearing security glasses and appropriate clothes are necessary to protect your skin.


  • On low heat, mix gradually 1 tablespoon of cornstarch with 1 glass of water in a saucepan. Stir the mixture and when it becomes homogeneous don’t add any more water.
  • When you obtain a gelatinous substance, take the saucepan off the heat.
  • Pour your mixture into a glass salad bowl.
  • Add 1 to 2 glasses of oxygenated water.
  • Mix the solution.
  • Add 1/3 of a Vanish tablet.
  • Your mixture should look like wallpaper glue. Leave it to rest for 10 minutes.

How to use this mix:

  • Spread the mix with a brush.
  • Put your objects in a sun-filled room for a few hours (but avoid the warmest hours of the day).
  • Rinse your objects with water.

9. Whiten your objects with baking soda


You can whiten your plastic objects by mixing baking soda with a little bit of water. The mixture will create a whitening paste. All you have to do is to benefit from its whitening properties is to scrub the plastic with a humid sponge, rinse it and dry it. Take a smooth, non-abrasive sponge so you don’t damage your object.

8. Use white vinegar


White vinegar is also a great ingredient to remove yellow stains.

  • Mix white vinegar and water.
  • Scrub your object with a non-abrasive sponge.
  • Rinse and dry.

7. Use oxygenated water


Oxygenated water is often used to whiten objects and clothes so you can use it to remove yellow stains from your yellow objects. Here is what to do:

  • Wash your object with some dishwashing soap and water.
  • Let the object soak in a container filled with oxygenated water.
  • Let your object dry in a sun-filled place.

6. Wash your plastic with sodium carbonate

Ibu / Wikimedia Commons

Take a tablespoon of sodium carbonate and dilute it in a glass of hot water. Soak a sponge in the mixture and clean your object with it.

5. Rubbing alcohol: a practical product


Rubbing alcohol can also help remove yellow stains from plastic. Take a rag, soak it in rubbing alcohol and scrub your yellowed object.

4. Use stone clay

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We often use stone clay when it’s time to clean our house. It can also be used to remove yellow stains on your plastic objects. To do this, take a humid sponge and the clay to create a foam, then scrub it on your object. Rinse it and then dry it.

3. Test this trick to whiten your home appliances

Walmart Canada

This trick works really well to whiten your home appliances.

What you need:

  • 1 liter of cold water.
  • ½ cup of bleach.
  • ¼ cup baking powder.
  • 1 sponge.
  • 1 plastic tablespoon.


  • Mix your ingredients with the plastic spoon.
  • Soak your sponge in the mix and then wring it.
  • Scrub your appliance with the sponge.
  • Repeat until your appliance is humid.
  • Wait 10 minutes and wipe your appliance with the sponge.
  • Rinse and dry.

2. Avoid whitening your objects with this product


We suggest you avoid whitening your plastic objects with acetone since this whitening product strips the protective coating of your objects which means you risk damaging them.

1. A few before and after yellowed objects

Here are a few examples of objects that were whitened with the help of the tricks used above.

Sources :

  • Remèdes de Grand-Mère
  • Astuces de Grand-Mère
  • toutcomment.com