Homemade Powdered Laundry Detergent - No grating!
4. Once it's all a powder, you should have about 1 cup of powdered soap. Add 1 cup of borax, 1 cup washing soda, and 1 cup oxygen powder if desired. I've made it both ways, and I like it with the oxy clean better. You can definitely leave it out or use less if you want. Give it …