How to Make Laundry Soap (Liquid or Powder Recipe) (2024)

Making your own natural, homemade laundry detergent is one of the easiest parts of a transition to natural living. This natural laundry soap recipea 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)How to Make Laundry Soap (Liquid or Powder Recipe) (1)
  • 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.

How to Make Laundry Soap (Liquid or Powder Recipe) (2)

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.

How to Make Laundry Soap (Liquid or Powder Recipe) (3)

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4.10 from 61 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 mins

Total Time15 minutes mins

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.

How to Make Laundry Soap (Liquid or Powder Recipe) (4)

How to MakeLiquid 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 cupsof borax and 2 cupsof 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

How to Make Laundry Soap (Liquid or Powder Recipe) (5)

As mentioned above, there is chemically adifference between soap and detergent. The advantage ofconventional 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 Sudsper 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?

How to Make Laundry Soap (Liquid or Powder Recipe) (6)

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 tablespoonsSal 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 frugaloption is to make your own, but thesenatural 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?

How to Make Laundry Soap (Liquid or Powder Recipe) (7)
How to Make Laundry Soap (Liquid or Powder Recipe) (2024)

FAQs

How to Make Laundry Soap (Liquid or Powder Recipe)? ›

Homemade laundry detergents typically lack the cleaning power of commercial brands. They can damage fabric or washing machines, leave residue behind, and may not be safe for your health or the environment due to the potential allergens and unregulated ingredient blends.

How do I make my own liquid laundry detergent? ›

directions
  1. Fill a saucepan with 6 cups water and add grated Fels Naptha soap.
  2. Heat on low until soap is dissolved.
  3. Stir in Washing soda and borax.
  4. Stir until thickened, and remove from heat.
  5. Add 1 quart hot water to 2 gallon bucket.
  6. Add soap mixture, and mix well.
  7. Fill bucket with hot water, and mix well.

How to make powdered soap for laundry? ›

YOU WILL NEED:
  1. One bar of natural soap (like Castile, coconut soap or goats milk soap)
  2. 2 cups of baking soda.
  3. 2 cups of washing soda (try to get the finer powdered form rather than the big chunky crystals if you can)
  4. 1/2 cup of borax.
  5. 10-20 drops of pure essential oil (optional). ...
  6. A food processor.
  7. Grater.
Jun 19, 2018

What is the best mixture for laundry soap? ›

Here are our experts' steps for making homemade laundry detergent:
  • Begin by boiling 8 cups of water.
  • Next, add 2 cups of borax and 2 cups of baking soda.
  • Dilute 1 cup of 3 percent hydrogen peroxide with 2 cups of water; add to mixture.
  • Add 2 cups of dish soap and another 8 cups of boiling water.
Mar 15, 2024

Does homemade liquid laundry detergent work? ›

Homemade laundry detergents typically lack the cleaning power of commercial brands. They can damage fabric or washing machines, leave residue behind, and may not be safe for your health or the environment due to the potential allergens and unregulated ingredient blends.

What is the main ingredient in liquid laundry detergent? ›

Surfactants. Anionic surfactants: branched alkylbenzenesulfonate, linear alkylbenzenesulfonate, and a soap. Surfactants are responsible for most of the cleaning performance in laundry detergent.

How do you make old fashioned laundry soap? ›

Old Fashion Homemade Laundry Detergent
  1. 12 cups Borax.
  2. 8 cups baking soda.
  3. 8 cups washing soda.
  4. 8 cups finely grated Fels-naptha Soap‎

Is homemade powder laundry detergent safe? ›

Even zero-waste advocates do not recommend using DIY laundry soap over a high-efficiency detergent. It renders clothes and sheets oily in the long run. This may even cause some skin problems because of the trapped dirt and soap residue on the fabrics.

What is the formula for detergent powder? ›

They are usually made up of surfactants and are effective because they have an amphipathic structure which means that one side of the compound is hydrophobic which will avoid water whereas the other side is hydrophilic which will easily attach to water. The chemical formula for detergent is: C 18 H 29 NaO 3 S .

What is the formula for laundry soap? ›

Here's the formula: Add 72.31% of water in the mixing tank and start mixing. Add 5.04% of sodium hydroxide (50% solution) followed by 9.6% of DDBSA (Calsoft LAS-99, Pilot). Mix well until complete neutralization to pH 7-9. Add 5% of SLES (Calfoam ES-702, Pilot).

Is powder or liquid laundry soap better? ›

Powerful cleaning agents that can be included in powdered detergent formulas, but not liquid forms, work to help remove mud, grass or clay stains. Liquid detergent is best used for grease or oil stains on your day to day items, because of its ability to help release and break down stains in fabrics.

What makes a good laundry soap? ›

It is important to look for surfactants and enzymes to remove soil and stains. Bargain brands have fewer of these components and will not clean as well. You may find that having two formulas on your laundry shelf will serve your needs; one detergent for lightly soiled clothes and one for heavily-soiled clothes.

How to make homemade liquid laundry detergent? ›

Add 4 cups liquid castile soap, 4 cups washing soda, and 4 cups borax to a 5-gallon bucket. Pour the boiling water into the bucket with the other ingredients and stir until everything is dissolved. Top the container off with 28 cups (1.75 gallons) of water (doesn't have to be boiling, cold water from the tap is fine).

What is the best substitute for laundry detergent? ›

Baking soda

Baking soda, aka sodium bicarbonate, is a naturally occurring substance that can do wonders for your laundry. Having long been used as an eco-friendly alternative to laundry detergent and in other cleaning processes around the home, baking soda is the obvious choice when you've run out of laundry detergent.

Is it cheaper to make your own laundry detergent? ›

is DIY laundry soap cheaper than traditional detergent? In theory, yes. The ingredients that go into it are cheap to get your hands on. However, in my opinion, the cost of potential damage to your clothes and your washing machine is not worth the dollars saved.

What is the best alternative to liquid detergent? ›

6 Eco-Friendly & Natural Laundry Detergent Alternatives to Try
  1. Baking Soda + Vinegar: You probably had no idea that an excellent laundry detergent can be found right in your pantry. ...
  2. Baking Soda + Lemon Juice. ...
  3. Plain Vinegar. ...
  4. Borax. ...
  5. Natural Bar Soap. ...
  6. Peroxide for Whites:

How do you make liquid detergent formula? ›

Steps to making liquid detergents
  1. Mix the soda ash with the 50 liters of water.
  2. Add the Sulphuric acid to it and stir.
  3. Add the Park R and stir very well.
  4. Add the formalin and stir.
  5. Add the colour and mix very well.
  6. Allow to stand for some time, then add perfume.

References

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