3 Ways to Make Your Own Laundry Detergent - wikiHow
Feb 28, 2020·To make your own powdered laundry detergent, grate 10 ounces (283 g) of bar soap, like castile or Zote laundry soap, over a large bowl with a cheese grater. Transfer the soap flakes to a food processor and pulse the soap for 1-2 minutes until the flakes have been reduced to a powder.