11/2 cups baking soda or washing soda
1/2 cup citric acid
1/3 cup fine salt
10 drops lemon essential oil
10 drops lime essential oil
Combine all the ingredients in a large glass jar, screw on the lid, and tip upside down 4–5 times to mix well.
Use 1 tablespoon per load as needed.
For an extra clean load, add white vinegar to the rinse compartment, and wash as usual.