Grating and Mixing
Here's what you should do:
- Start grating the soap and measure two cups of the powdered soap and pour it into your bowl. Two cups of grated soap is equivalent to about half a bar of soap.
- Measure a cup of washing soda and another cup of Borax and pour it in the bowl with the grated soap.
- Mix it around with your hands; use gloves if you need to.