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Homemade Laundry Soap Without Washing Soda or Borax

Updated November 21, 2016

Making your own laundry soap is a great way to save money and be eco-friendly. The usual ingredients for laundry soap are simple soap, borax and washing soda. Washing soda and borax, however, may be difficult to find in some places, and borax may even be somewhat harsh on your linens or laundry. Fortunately, you can make a homemade washing powder without using either of those ingredients.

Measure 1 cup of liquid Castile soap and empty into the cooking pot.

Add 4 cups of water to the pot and bring the mixture to a rolling boil (bubbles will rapidly rise to the surface of the water).

Remove the soap mixture from heat and add 1 cup of baking soda to the mixture. Stir to combine all ingredients.

Empty the mixture into the 3-gallon container.

Pour 1 3/4 gallons of hot water into the container with the soap mixture. Stir to combine.

Use 1/3 cup of detergent per load of laundry washed and cover the container with a lid when detergent is not in use.

Tip

Liquid Castile soap (soap made of vegetable oils rather than animal fat or synthetic oil) comes in a variety of fragrances, such as lavender, citrus and even mint, that add a pleasant scent to your laundry. Add 2 tbps. distilled white vinegar to the rinse cycle of your laundry to soften fabrics and completely rinse your laundry of all soaps. The detergent may separate between loads of laundry. If this occurs, simply stir the detergent before you use the detergent again.

Things You'll Need

  • Cooking pot
  • Measuring cup
  • Liquid Castile soap (such as Dr. Bronner's)
  • Water
  • Baking soda
  • Spoon
  • 3-gallon airtight container (for storage)
  • 1 3/4 gallons hot water
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