Homemade Laundry Detergent

Creating a 10-gallon recipe for natural soap-based laundry detergent without borax or washing soda can be done using castile soap as the main ingredient. Here's a simple recipe for a large batch:


  1. 2 bars of natural soap (Castile soap or olive oil soap)
  2. 10 gallons of water
  3. Essential oils for fragrance (optional)


  1. Large pot
  2. Cheese grater or food processor
  3. Mixing spoon
  4. Funnel
  5. Empty and clean 10-gallon container or several smaller containers


  1. Grate the Soap:

    • Use a cheese grater or food processor to finely grate the 2 bars of natural soap. This will help the soap dissolve more easily in water.
  2. Boil Water:

    • Bring approximately 1 gallon of water to a boil in a large pot.
  3. Add Grated Soap:

    • Gradually add the grated soap to the boiling water, stirring continuously to help the soap dissolve. Continue stirring until the soap is completely dissolved.
  4. Cool the Mixture:

    • Allow the soap mixture to cool. It will thicken as it cools.
  5. Add Essential Oils (Optional):

    • If you desire a pleasant fragrance, add a few drops of your favorite essential oils. Stir well to distribute the scent.
  6. Transfer to Storage Container:

    • Once the soap mixture has cooled, use a funnel to carefully transfer it to a clean and empty 10-gallon container or divide it into several smaller containers.
  7. Top Up with Water:

    • Add the remaining 9 gallons of water to the soap mixture in the container. Stir well to ensure even distribution.
  8. Mix Well Before Use:

    • Before each use, give the detergent a good stir or shake to make sure it's well-mixed.
  9. Use in Laundry:

    • Use approximately 1-2 cups of the natural soap-based detergent per load, depending on your laundry needs.


  • This recipe is free of borax and washing soda, making it suitable for those who prefer an alternative formula.
  • Adjust the amount used per load based on your washing machine and laundry needs.
  • Experiment with different natural soaps to find a scent that you enjoy.
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