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Homemade Laundry Soap Powder

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Save money and make your own laundry soap powder.  With a small investment and a little bit of time, you can easily make enough laundry soap to last all year.

This is simply the best homemade laundry soap powder you will ever find! You can make this laundry soap for pennies on the dollar (compared to commercial detergents) and you have complete control over the ingredients. You can make this laundry powder by using a commercial soap like Ivory, Dial, Fels Naptha, Kirk's Castile, Dr. Bronner's....or…you can use a handmade soap like the kind I offer in my shop (just a suggestion, no judgement here). This laundry soap is low sudsing and eco-friendly and pocketbook friendly. You gotta try it, I think you’ll be amazed by the results and thrilled with the extra money in your pocket.  This recipe makes 9 1/2 pounds of laundry soap powder.  If the amount scares you a little, find a friend to pitch in on the cost and share the bounty. 

1 box of borax (65 ounces)
1 box of baking soda (16 ounces)
1 box washing soda (55 ounces)                                                 4  four ounce bars of the soap of your choice (16 ounces)

Grate the soap with the fine tooth cheese grater. The smaller the soap flakes, the better they dissolve in water.  This is the hard part.  It is a little bit of a work out, trust me, it is worth the effort. 

Sift the dry ingredients. This is important because anything that isn’t tiny is too big to dissolve quickly in the cold/cool water wash.  Wear a dust mask or do this step outside.  The powders are light and make a mess.  

Mix all ingredients together, stir well and store in a sealed tub.

Use 2 tablespoons of powder per full load (up to 1/4 cup for really dirty or heavy loads). 

Use 1/4 cup of white vinegar as an alternative to commercial fabric softeners. Add it to the rinse cycle via your washer’s fabric softener dispenser (I use it in those fabric softener balls you just fill and toss into the load). The vinegar will cut any soap residue and will leave your laundry smelling sweet, fresh, and clean.

1. Borax and washing soda are found on the laundry aisle.

2. Most any bar soap will work for this recipe. You do not want a “beauty bar” for this soap…the moisturizing agents will leave a residue on clothing. Ivory is the most cost-effective and seems to work well for most skin types. Of course, I use my olive oil soap (plain, traditional, unscented) and it works fantastic but is a little more pricey.

3. Add essential oils for fragrance.

4.  This mix will keep for a very long time.  I use a plastic bucket with a snap on lid.  Ice cream buckets work very well, too.  


Have you made your own laundry soap? Questions?  Comments?  I would love to hear about your experiences in the comments below!

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  • Kristy MeYeR on

    I used to make my own all the time using Fel’s Naptha. When my kiddos were younger, they used to argue over who got to grate the soap for me, LOL! These days I’m old and lazy and am more than happy to let you do the work for me. I’ve currently got a batch made with the Bay Rum scent and I L-O-V-E it! Next time, I think I’ll go for a eucalyptus/mint scent, but I digress. I’ve used your laundry powder for a good while now and it cleans excellently, and this recommendation is from a family of all boys, all of whom are grease monkeys like their daddy.
    This stuff works!!

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