- 1 bar of soap
- 1 cup borax
- 1 cup baking soda
- 1 cup washing soda
Grate the soap on a cheese grater and combine all three. Use 1 tablespoon for small loads or in high efficiency machines. Use 2 tablespoons for regular loads.
Tip: Grate soap and let it sit for a few days to dry out. Use your fingers to crush up the soap into a finer consistency. This will help it dissolve better.