How To Remove Castor Oil Stain From Washable Fabrics

February 14, 2023

Castor oil is a popular natural remedy that has been used for centuries to promote hair growth, soothe skin irritations, and even relieve constipation. However, its thick, sticky texture can also make it a real pain to remove from washable fabrics. Whether you're using it as a hair treatment, a laxative, or for some other purpose, it's all too easy to accidentally get castor oil on your clothing. Fear not - there are several methods you can use to successfully remove castor oil stains from your favorite fabrics. In this article, we'll explore some of the most effective techniques and provide step-by-step instructions to help you get your clothes looking like new again.




These stains may appear as a greasy or oily mark on the fabric that could be transparent or slightly yellowish in color. They may also have a shiny appearance.


Warm (85° to 105°F)


Warm water helps to dissolve the oil and make it easier to remove.

The Science Behind Castor Oil Stains

Castor oil stains clothes because it is a triglyceride, meaning it is made up of three fatty acid chains bound to a glycerol backbone. These fatty acids can be difficult to remove from fabric because they are hydrophobic, meaning they do not mix well with water. When castor oil comes into contact with fabric, the fatty acids can penetrate the fibers and become embedded, leading to a persistent stain. Additionally, the yellowish color of castor oil can also contribute to discoloration of the fabric.

What You'll Need To Get Rid Of Castor Oil Stains

  • Paper towels or clean cloth
  • Cornstarch or baking soda
  • Dishwashing detergent or laundry detergent
  • Hot water
  • Washing machine

Step By Step Process To Remove Castor Oil Stains

  1. Blot the stain with paper towels or a clean cloth to remove as much of the excess oil as possible.
  2. Cover the stain with cornstarch or baking soda and let it sit for 10-15 minutes to absorb the remaining oil.
  3. Shake off or brush away the powder and apply a small amount of dishwashing detergent or laundry detergent directly to the stain.
  4. Gently rub the detergent into the stain and let it sit for 5-10 minutes.
  5. Rinse the fabric with hot water.
  6. Wash the garment in the washing machine with detergent and hot water.
  7. Inspect the fabric before drying and repeat the process if necessary.
Please note that hot water is recommended for washing the garment in the washing machine, as it can help to break down and remove the oil. However, be sure to check the care label on the garment to ensure that it can be washed in hot water. Additionally, it is important to act quickly to remove the stain, as older stains can be more difficult to remove. Finally, be sure to test any cleaning solution on a small, inconspicuous area of the fabric before attempting to remove the stain to avoid damaging the fabric.

In Brief

Castor oil stains are caused by the hydrophobic fatty acids in the oil embedding themselves in fabric fibers, and the yellowish color of the oil can also contribute to discoloration. To remove the stain from washable fabrics, blot away excess oil, cover the stain with cornstarch or baking soda, apply detergent, rinse with hot water, and wash the garment in the washing machine. Hot water is recommended for washing but be sure to check the care label first. Act quickly and spot test any cleaning solution before use.

Want to share this?