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Homemade Laundry Soap

Updated: Jun 17, 2023

Are you attempting to reduce your spending on every day essentials? What about thinking like your Great Grandmother? How about reducing toxic chemicals in your household? Still want to afford effective cleaning products? Would you maybe like to have more effective cleaning options?

We are sharing more of our homemade cleaning products, this time it’s all about the laundry 🧺

We hope you enjoy these just as we do!

SAFE FOR BABY & SENSITIVE SKIN: All laundry recipes below are safe for baby and those with sensitive skin too. We wash baby/children’s clothes in both of the soaps without any negative skin effects.

Our Favorite Homemade Laundry Products


8 oz. Castile Bar Soap or Liquid Castile Soap (homemade or purchased) (liquid soap is our preferred choice)

1 C. Washing Soda

8 C. Water

Empty jug for storage


1. Grate the bar soap (if using) and place in a medium saucepan. If using liquid soap, place that in the saucepan.

2. Add the washing soda and water to the saucepan with the soap.

3. Heat the mixture slowly on the stovetop, stirring frequently, over medium/low heat until the grated soap is dissolved (if using bar soap) or until the washing soda is dissolved (if using liquid soap). Remove from heat once the soap or washing soda is dissolved.

4. Cover the pot with a lid and allow the mixture to cool down. Covering slows down the cooling process and prevents a thicker layer from forming on top of the soap.

5. Once the soap is completely cooled (this can take up to 12 hours or more) you may add essential oil if desired (4 teaspoons), mix in well.

6. Pour the soap into a storage bottle/jug. Saving a large vinegar jug or a conventional laundry detergent jug is ideal.

7. Label the jug.

* Use 1/4 to 1/2 cup per load, depending on your load size and type of machine.

* Large, top loading washing machines will require more soap. Smaller, front loading washers will require less, etc.

* It also depends on the type of laundry you’re washing - towels, linens and highly soiled clothes will require more soap, delicates and lightly soiled clothes will need less.



15 oz. Castile Bar Soap (homemade or purchased)

1 Box of Borax (65 oz)

1 Box of Washing Soda (55 oz)

1. Grate the bar soap, set aside.

2. In a large mixing container, add the Borax and Washing Soda, breaking any clumps with hands or potato masher.

3. Using a food processor, add the grated soap and a small amount of the Borax/Washing Soda mixture to the processor bowl. (This may need to be done in a couple of small batches, depending on the size of your processor bowl). The Borax/Washing Soda is used to keep the soap from sticking together.

4. Process the soap in the food processor until it resembles a grated Parmesan cheese texture.

5. Add the soap bits to the mixing container with the Borax and Washing Soda. Mix well until combined.

6. Store your homemade laundry soap in a large container for easy use. This recipe fills a gallon storage container.

Use 2-3 tablespoons per large load of laundry. Use more or less based on load size and how soiled the clothing is.



White Vinegar (5-6% acidity)


Storage Jug

Make a 50:50 mixture of white vinegar and water. Add 1/2 cup of the white vinegar and water mixture to the fabric softener dispenser in your washing machine or add it during the rinse cycle of the washing process.

White vinegar softens clothes, leaves clothes smelling fresh while removing and preventing mildew odors. It will also keep your washing machine smelling fresh and remove any built up soap residue (both in your washing machine and on your clothes).


Make sure to use only white vinegar, NOT apple cider vinegar. Apple cider vinegar contains brown tannins that can stain fabrics. Save apple cider vinegar for culinary purposes and use only white vinegar for all of your cleaning needs.

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