With just 5 ingredients, this homemade laundry soap is an easy DIY laundry detergent recipe to make if you want to learn how to make laundry detergent! Best part: it’s all natural and chemical-free!!
Grate ½ bar of Fels-Naptha Soap. I grate the whole thing while I am at it and put the rest away in a baggie for the next batch.
In a large pot on your stove top pour about ½ the water, and grated soap. Warm over medium-high heat stirring continuously until all flakes are dissolved.
Remove pan from heat, add washing soda, Borax, essential oils, and remaining water. Stir well to combine. Cover with a lid and let it “cure” overnight.
Stir again and transfer to containers, filling halfway and then the rest of the way with just water.