Homemade Oatmeal Laundry Soap

Homemade Laundry Soap.

Homemade Laundry Soap

Laundry soap is an item that I will no longer pay for. I stumbled upon a homemade laundry soap recipe from Soule Mama awhile back and I am now hooked on making this item myself. With a few slight modifications, I believe I have the best natural laundry soap in town.

It also meets my 3 natural product requirements. This laundry soap is:

  1. Inexpensive
  2. Effective
  3. Simple (oh so simple!)

DIY Oatmeal Laundry Soap Recipe


1 Cup Natural Oatmeal Soap (or any other bar soap), Finely Grated
1/2 Cup Borax
3/4 Cup Washing Soda (recipe here)
1/2 Cup Baking Soda

First thing’s first – add the grated soap to a large mixing bowl. I use a natural oatmeal soap, but any bar of soap will work. I have a little one with eczema and a newborn, and I love how gentle the oatmeal soap is on the skin.

Tip: Approximately 3/4 of a typical bar of soap is one cup.

Approximate cost per batch: $1 (much less if you use non-oatmeal bar soap)
Best Price I’ve found: Bulk Barn or Michaels (for natural oatmeal)

Step 1: Add 1/2 cup Borax to the mixing bowl.

Creating Laundry Soap

Borax is a naturally occurring substance that will help to remove stains from clothing.

Approximate cost per batch: $0.50
Best price I’ve found: Walmart

Step 2: Add 3/4 cup washing soda to the mixing bowl.

Laundry Soap Process

Penny shares how easily baking soda can be made into washing soda – simply bake at 400 degrees for 30 minutes, stirring occasionally until it becomes grainy.

Washing soda helps get out odours, so it’s necessary in this homemade laundry soap recipe.

Approximate cost per batch: $0.60 (if cooking baking soda)
Best price I’ve found: Bulk Barn

Step 3: Add 1/4 cup baking soda to the mixing bowl.

DIY Laundry Soap

Baking soda acts as a clothes softener and whitener. Honestly – what can’t baking soda do?

Approximate cost per batch: $0.20
Best price I’ve found: Bulk Barn

Step 4: Mix all ingredients very well and store in an air-tight container.

Laundry Soap Mix

To use: Add 2 tablespoons per load of Laundry. I also add in a splash of vinegar with each load to help with stains – and I promise your clothing will not smell like vinegar!

When you transfer your clothes to the dryer, consider using a balled up piece of aluminum foil (about the size of a ping-pong ball) instead of static cling sheets. Change the foil weekly for best results. I have had great success with this tip!

Aluminum Foil Dryer Sheets

Total cost for 20 loads worth of laundry soap: Approximately $2.30 (only $0.12 per load)

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  1. Olivia says:

    I have a large front load washer and I fill it up with 4 loads per week for a family of 4 adults.

  2. Sandy says:

    Around x4 week with 2 adults, 2yo and will expect more with another little one on the way in a couple months. This recipe sounds great! Question – do you use the homemade soap in a HE washer? If yes, do you put it directly on the clothes or in the drawer for powder detergent?

  3. Lori says:

    I do it once a week but a family of five it takes a while. I did teach my 2 teenagers to do their own laundry when they turned 13 so that helps. however, if I win this detergent would be just for me.. 🙂

  4. Heather says:

    I do laundry about 2-3x per week (1-2 loads each) for clothes with 2 adults and a 6 month old. Just recently switched to cloth diapering so another 2-3x per week for that. Lots of laundry here.

  5. Kim says:

    I pretty much do a load of laundry ever day! I get overwhelmed if I leave it too long so I try to keep up with it. This would be great to try out!


  6. Abigail says:

    I used to do it every other day until the new baby. We have 6 people in the house now and we do laundry every day. My hubby gets it going in the morning and I usually fold and put away. Great teamwork!

  7. Carrie H says:

    I should do laundry everyday but its 2 or 3 days a week.

  8. Everly says:

    I try to do at least one load a day or else it just gets out of hand!


  9. Everly says:

    I try to do at least one load a day or it gets out of hand!


  10. Nicole says:

    I am assuming so but can this soap be used in any temperature of water

    • Susan White says:

      I asked the same question and she tested it for me in cold water and said it worked fine. I made a batch myself and have been using it and my clothes are clean and look brighter than they normally do so it seems to work fine. Just dissolve it in a bit of hot water before adding it to your machine.

  11. Stephanie says:

    You quoted $0.50 from Bulk Barn or Michaels for natural oatmeal. Does this mean you make your own oatmeal soap?

  12. Susan White says:

    Just wanted to leave a comment to say that I tried the recipe and this laundry soap works great. The clothes are clean and bright although I’m still trying to get used to the fact that they don’t have a “perfumey” smell like when you use regular detergent. I worried about the soap not dissolving in the cold water that I use for laundry, but I solved that problem by mixing it with a bit of hot water first before adding it to the machine. Thanks for the recipe!

  13. Olivia says:

    You’ll find it in the laundry section aisle. I finally came across it about a month ago and have since been using it successfully. Bought mine at Food Basics for $4.50 a large box.

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