1 bar Fels Naptha, finely grated
2 cups Borax
2 cups Washing Soda
1 cup Baking Soda
Whisk everything in a large bowl to combine. Store in a large jar. Makes about 7 cups.
For use:
Small Load: 1 tbsp
Medium Load: 2 tbsp
Large Load: 3 tbsp
Plus 1/2 cup white vinegar in the rinse cycle.
Sprinkle in washing machine and stir to dissolve before adding clothes.
For heavily soiled clothing, soak before washing.