DIY Laundry Detergent


Kirk’s Castile Bar Soap
Super Washing Soda
Storage Container


  • Grate one bar of soap
  • Add two cups of super washing soda
  • Mix

I typically make 3 batches at once so that I use a full box of washing soda and the 3 pack of bars that I buy.

I love making this detergent because I have extremely sensitive skin and store bought detergents make me constantly break out in an itchy rash. I have been making this detergent for about five years now and have never had another skin problem!

The other benefit to this detergent? It’s so cheap! I buy a 3-pack of bar soap for $4 and a box of washing soda for $4 – making my total cost $8

When I make three batches, I can typically wash 100 loads of laundry – give or take – It really just depends on how much I am using for certain items.

My tip for using this detergent effectively is to let the water fill up slightly, then add your detergent and give it some time to dissolve. For most loads of laundry I use a heaping TBSP of detergent. I adjust depending on what I am washing. It’s really just trial and error – see what works best for you!

If you are anything like me, you will want to add a little decoration to your container – If you have a vinyl cutting machine, throw on a little vinyl – If you don’t you can add some paint! I added the recipe to making the detergent on the back of my container so that I don’t have to look it up each time I am ready to make more. After 100 loads of laundry you are bound to forget something as simple as 1 bar of soap + 2 cups of washing soda. Or at least I am. For my container, I used a 1 gallon glass jar – check out the pictures below!

Need some DIY dryer sheets to go along with your DIY detergent? Check out that post here!


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