Zero Waste Laundry Soap

Zero Waste Laundry Soap

Making your laundry soap is super easy to make and the results are great. Also, it can be done zero waste! We have moved from using regular laundry soap in a plastic bottle to eco-friendly laundry soap in a plastic bottle… and now we make our own. The clothes are clean and smell like lavender (my choice of essential oil). Compared to the eco-friendly laundry soap, my partner says it’s better. I have also made it for friends of mine and they love it and want to learn how to make it themselves.

Make it yourself and let me know what you think!

Ingredients to make 2L worth:

  • 2L of boiling water
  • 100g of Marseille soap flakes (or grate a Marseille/castille soap bar)
  • 50ML of baking soda
  • 4-5 drops of essential oil (lavender)
  • A mixing bowl
  • Two 1L repurposed glass jars/bottles


  1. Boil water
  2. Place soap flakes in a mixing bowl and add the hot water
  3. Mix and dissolve the soap flakes in the water
  4. Add baking soda and mix to dissolve
  5. Add 4-5 drops of essential oil of your choice and mix
  6. Mix together until everything has dissolved
  7. Let cool for a few hours and transfer to an upcycled glass jar
  8. Store in a cool place

How to use:

  1. Shake bottle
  2. Add 1/4 cup of the laundry soap to the washing machine drawer (where you usually put the detergent)
  3. Wash clothes at 30-40 degrees Celsius

I made a video so you can easily follow along:

Last year, I gifted this to my partner’s Mum as part of her Christmas gift so she can try her hand at making her own laundry soap. 🙂

Where you can get the soap flakes: