Homemade Powder Laundry Soap - Our Oily House
HOW TO MAKE POWDER LAUNDRY SOAP INGREDIENTS . 1 bar castile soap (or Fels Naptha soap bar) 2 cups washing soda ; 2 cups baking soda ; 30 drops lavender essential oil (optional) INSTRUCTIONS . Finely grate the soap bar using a cheese grater. Add the shredded soap bar, washing …