How to Make Laundry Soap (Liquid or Powder Recipe)

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Liquid or Powder Natural Laundry Detergent
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Making your own natural, homemade laundry detergent is one of the easiest parts of a transition to natural living. This natural laundry soap recipe a great way to save money on laundry detergent and is incredibly easy to make. This homemade laundry detergent post is an updated version of this recipe that addresses high efficiency washers and borax safety.

Why Switch to Natural Laundry Soap?

Conventional laundry detergent is loaded with chemicals like sulfates, fragrances, phenols and more. Many brands contain things like petroleum distillates, which are linked to cancer and lung disease. Fragrances in these detergents are made of a mix of harmful chemicals. (This is also why I make my own linen spray.)

Luckily, making your own laundry soap is an easy and fast process! You only need three basic ingredients to make either a powdered or liquid laundry soap:

DIY Laundry Soap Ingredients

  • Washing Soda (Arm and Hammer Brand available at most stores)Borax Powder
  • Borax (20 Mule Team Borax available at most grocery stores)
  • Bar Soap (Dr. Bronner’s,  Ivory, or other natural, unscented bar soap)

Washing Soda and Borax should be available at your local grocery store on the laundry aisle. Natural bar soaps are in the health, beauty, or organic sections of the store, or online. You can also add a couple tablespoons of baking soda to help freshen clothes.

Wonder What’s in These Ingredients?

Borax is a naturally occurring mineral made up of sodium, boron, oxygen, and water. It is an ingredient in most of the natural soaps available now (Seventh Generation, etc.) but it is much more inexpensive to make yourself. There are some concerns about the safety of Borax, but here’s why I feel comfortable using it, especially for laundry.

Washing Soda

Washing Soda, sometimes called sodium carbonate or soda ash, is made from common salt and limestone or found as natural deposits. If you can’t find this locally, you can make your own from plain baking soda with this tutorial. Here are some other great household uses for washing soda.

Dr. Bronner’s soaps are fair trade and made with vegetable castile soap and pure organic oils.

Liquid or Powder Natural Laundry Detergent
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4.10 from 66 votes

Natural Laundry Soap Recipe

This homemade laundry detergent recipe is easy and very inexpensive to make, plus you avoid the chemicals of conventional detergents.
Prep Time15 minutes
Total Time15 minutes
Yield: 2.5 cups
Author: Katie Wells

Materials

  • 1 bar soap (such as Dr. Bronner’s Pure Castile Bar Soap or homemade coconut oil soap)
  • 1 cup washing soda
  • 1 cup borax

Instructions

  • Grate the bar of soap or chop it in a food processor until finely ground.
  • In a large bowl, mix together the grated soap, washing soda, and borax.
  • Store in a sealed container.
  • To use: add 2 tablespoons to ¼ cup of soap per load of laundry.

Notes

See below for instructions on making a liquid version of this laundry soap.
Homemade liquid laundry soap recipe

How to Make Liquid Laundry Soap

  1. Grate one bar of soap with cheese grater or food processor.
  2. Put grated soap in pan with 2 quarts water and gradually heat, stirring constantly until soap is completely dissolved.
  3. Put 4.5 gallons of really hot tap water in a 5-gallon bucket (available for free in bakeries at grocery stores, just ask them) and stir in 2 cups of borax and 2 cups of Washing Soda until completely dissolved.
  4. Pour soap mixture from pan into 5-gallon bucket. Stir well.
  5. Cover and leave overnight.
  6. Shake or stir until smooth and pour into gallon jugs or other containers.
  7. Use 1/2 to 1 cup per load.

These recipes are also a great way to save money on laundry. By my calculations, I am saving over half on my laundry bill by switching

A Note About Soap vs. Detergent

All Natural Laundry Soap Recipes - two ways

As mentioned above, there is chemically a difference between soap and detergent. The advantage of conventional laundry detergents is that they are formulated to work specifically in washing machine environments. Many soaps are designed for skin and are not as strong. Some sources suggest that over time, natural soaps can leave buildup in washers.

I’ve found that while this recipe works well for me, it isn’t suitable for all water types and washer types. If you’ve used natural laundry soap and experienced clothes getting dingy, this may be the reason.

I’ve found one natural detergent that works brilliantly and can be used alone or in combination with homemade laundry soaps like this one. I often add 2-3 Tablespoons of Dr. Bronners Sal Suds per load as a natural detergent. Sal Suds gets out tough stains and odors and is still a natural product (though technically a detergent/surfactant and not a soap).

Don’t Want to Make it?

Homemade Natural Effective Laundry Soap Recipe

We usually make our own detergent, but for times when we are traveling or I haven’t had time to make it, I’ve found a few good brands of eco friendly laundry detergent that actually work (all received an “A” by the Environmental Working Group):

  • My Green Fills Laundry Detergent – Just a warning… after you try this laundry soap, you may be ruined for DIY forever. This is the best smelling non-toxic laundry detergent I’ve tried and it works well on tough stains and dirt. Similar to my favorite all-purpose cleaner, a huge bonus is their eco-friendly approach. The detergent comes concentrated in a small refill packet (hence the name) which you add to warm water in the provided bottle. Super smart!
  • 2 tablespoons Sal Suds + 1/4 cup Baking Soda or Washing Soda (highly effective and super simple!)
  • Ecover Zero Laundry Detergent– Works well, relatively cost effective and low/no risk of developmental or reproductive toxicity and cancer according to the EWG.
  • Emma Eco Me Detergent – Also rated well by the EWG and cleans up to 64  loads for $12. Good scents.
  • Planet Natural Detergent –  Relatively eco-friendly and cost effective at $9 for 32 loads.

Obviously, the most frugal option is to make your own, but these natural alternatives are a good choice if you aren’t able to make your own or don’t want to.

Have you tried making your own laundry detergent? What ingredients did you use?

This homemade laundry detergent recipe is easy and very inexpensive to make, plus you avoid the chemicals of conventional detergents.
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Katie Wells Avatar

About Katie Wells

Katie Wells, CTNC, MCHC, Founder of Wellness Mama and Co-founder of Wellnesse, has a background in research, journalism, and nutrition. As a mom of six, she turned to research and took health into her own hands to find answers to her health problems. WellnessMama.com is the culmination of her thousands of hours of research and all posts are medically reviewed and verified by the Wellness Mama research team. Katie is also the author of the bestselling books The Wellness Mama Cookbook and The Wellness Mama 5-Step Lifestyle Detox.

Comments

906 responses to “How to Make Laundry Soap (Liquid or Powder Recipe)”

  1. isha Avatar

    I tried the recipe with fll enthusiasm but something went wrong and the soap and liquid did not mix together properly and soap became of gooey consistency. I tried to save it by hand blending it for few minutes. It mixed but then the liquid and soap gets separate after some time and I have to shake it. Is it normal or am I doing something wrong

  2. Wilma Avatar

    made the soap as I have made for the last 5-6 years, and have loved it, however this time it did not jell up like it always did before, Is is still OK to use?

  3. Lois Bauders Avatar
    Lois Bauders

    I make my own liquid laundry soap. I want to add Oxyclean to it. I use Borax, Armor & Hammer washing soda & ivory soap. Will it hurt anything by adding it?

  4. Rachel Avatar

    Hi! I’m washing my first load with homemade laundry soap! I made a cold process caatile and scented with 10x lemon essential oil. Thanks for this recipe!

  5. Ashley V Avatar

    Hi Katie, I made the liquid laundry detergent exactly how you suggested but 2 days later I looked at it and the soaps have all gelled up. We are in alaska so its a bit cooler here, but it is in my laundry room on the second floor so it shouldn’t be THAT cold. Any tips or suggestions on how to salvage this and what caused it?

  6. Rebecca Avatar

    This is a good recipe. Thank you.

    I wonder why the Dr Bronner’s folks call their soaps “Castile,” since neither the bar nor liquid soaps are “castile” soaps.

    By definition, the oils in Castile soap is 100% olive oil. No other oil, ever. At best, Bronner soap is “Bastile” soap with a B, since the first two oils listed are coconut and palm oils.

    Maybe i should write to them and ask! ?

  7. Shannon R Cox Avatar
    Shannon R Cox

    I made my soap and it is super thin liquid. What can I do to thicken it up?

  8. Gloria Avatar

    With the recipe for powder laundry detergent, when you say 2 parts borax and washing soda are you just using 1 cup of each?

  9. Kirsten Avatar

    Hi! I was wondering what you considered the weight or volume of “one bar of soap”?

  10. Pam Avatar

    How could i fragrance this? I’m thinking essential oils of some kind but not sure what to use? Do you have any suggestions?

  11. Marli Rogers Avatar
    Marli Rogers

    my attempt at the liquid recipe did not turn out smooth, but clumpy..what did i do wrong??

  12. Jo Avatar

    I have liquid Dr Bonner.
    How much to use of the liquid vs grating a bar?
    Can Oxiclean Free be added?

  13. J. Enningson Avatar
    J. Enningson

    Making real soap, from scratch, is simple. Lard or tallow (rendered beef fat), at 0% superfatting. Fat, lye, and distilled water. No need to buy commercially made soap or detergent. Use food-grade lye, not the lye from the hardware store. Follow the safety precautions.

    Simple. Frugal. Just like our great-grandmothers did.

    Lots of info on soapmaking is available on the internet. And the libraries have good soapmaking books on the shelves.

  14. Amy Avatar

    You mention that it’s not the best for all washers…will it work in a high efficiency washer?

  15. Stephanne Avatar

    I love the powder version as well, and don’t know if there is a way to add essential oils to it. Someone else might have an idea, but i just add the oils instead to my wool dryer balls. Would that work for you?

  16. Stephanne Avatar

    I prefer the powder- it’s so easy to make and no worries about not gelling! I don’t know how you would add essential oils to it, but i have wool dryer balls, so add the oils to those instead. So my recipe is just as she said above- 2 cups washing powder and borax, each, to one grated bar of soap- Zote, Fels Naptha, whatever you prefer. You don’t have to get the soap grated super small, at least not the Fels Naptha i use. Then i add scent boosters, like Tide or Gain, but you don’t have to. You just don’t add water or boil or anything. I use one to three tbsps per load, but that’s because my husband drives a recycling truck, so his clothes can be smelly… i honestly tried to use some soap he brought with him when we got married, and ended up begging him to go back to the stuff i make- it works SO much better!!!!

4.10 from 66 votes (62 ratings without comment)

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