Homemade 5-Minute Powder Laundry Soap
4.84 from 6 votes

Homemade 5-Minute Powder Laundry Soap

...let’s talk about this powder laundry soap, and the simple ingredients and recipe that won my heart.

Course Homemade
Cuisine Cleaning
Keyword Powder Laundry Soap
Prep Time 5 minutes
Total Time 5 minutes
Servings 56 Loads
Author Kristin Marr



  1. Cut the castile soap bars into small slices or chunks. This step is important to avoid ruining your food processor.
  2. Place the castile soap slices or chunks in a food processor bowl. Pulse the soap on high until the soap resembles large crumbs. Add the washing soda to the food processor. Place a towel over the top of the food processor lid, and pulse for 1 minute. After pulsing, the ingredients should be well combined. If you don’t have a food processor use a cheese grater, and then mix the ingredients in a bowl.
  3. Pour the washing soda and castile soap into a storage container, and stir in the borax. Add the essential oils, if using.

Recipe Video

Recipe Notes

To Use: For top-loaders, use ⅛ cup. For front-loaders, use 1 tablespoon. Place the soap directly in the washing basin with the clothes, not the laundry soap drawer. 

The “where to buy” links provide links to the actual products I use. As always, I recommend shopping around online and at local stores for the best prices and products you love. Adapted from my book, DIY Natural Cleaning Challenge.