This is the recipe that really got us interested in making homemade products. It has been figured that using this soap costs you about 1 cent per load, versus the average 30 cents per load when using a commercial brand. And if you are a mom like us, you do a LOT of laundry and every little bit of savings helps.
1/3 bar of Fels-Naptha or 1 bar of Ivory soap, grated
½ cup washing soda (found in the laundry aisle in most stores - Arm & Hammer makes it)
½ cup borax powder (also in the laundry aisle - look for "20 Mule Team" brand)
~You will also need a small bucket, about 2 gallon size~
Put the grated soap in a sauce pan. Add 6 cups water and heat it until the soap melts. Add the washing soda and the borax and stir until it is dissolved. Remove from heat. Pour 4 cups hot water into the bucket. Now add your soap mixture and stir. Now add 1 gallon plus 6 cups of water and stir. Let the soap sit for about 24 hours and it will gel (it's a little like magic!). You use ½ cup per load.
We found that for easy storage and use, pour your finished laundry soap in two 1-gallon containers (we've used Gaterade and vinegar bottles - a great way to recycle!).
This soap does not foam, so don't be surprised when you first use it. Also, it really has no scent so if you'd like a stronger-smelling laundry soap just add a couple drops of your favorite essential oil.