Several homemade laundry soap recipes exist; this one uses a bar of Kirk's Coco Castile soap for a dye-free option that is safe for high-efficiency washers. The recipe takes about 15 minutes to assemble and requires Castile soap, 1 cup of washing soda and 1/2 cup of Borax.Continue Reading
Use a cheese grater to grate the entire bar of soap into a bowl. The soap must be grated finely if this recipe is for an HE washer.
Add the grated soap to a blender or food processor. Pour in the 1/2 cup of Borax and the 1 cup of washing soda. The soda is also called sodium carbonate and usually is located in the grocery store's laundry section. Blend the three ingredients until they are mixed well, taking care to keep the soap dust from blowing outside of the machine while it blends. Store the final product in a sealable container.
Use 1 to 2 tablespoons of this recipe for each load, depending on the size and amount of cleaning needed. For a top-loading washer, add the soap to the machine as it fills. For an HE machine, stir the same amount of soap into a cup of warm water before adding it to the regular detergent dispenser.