I got this ‘recipe’ from my mother and it’s fantastic. It is not only cheap – for just a few dollars for a 300g bar of soap, I can make 7.5 litres of laundry liquid – but it also works as well as the standard laundry liquids.

Here is what you will need:

  • 40g all-natural, plant-based, organic soap*
  • 1l. hot water
  • 1l. bottle (wash/rinse it and let it dry if you’re re-using old bottles)
  • Optional: a few drops of essential oils, such as lavender or ylang-ylang (or anything else you fancy)

Cut the soap in small little cubes. The smaller the cubes, the quicker it will dissolve. Put them in your bottle.

Run your tap until the water gets as hot as it can be, then fill up your bottle to about 1/4. Give it gentle shakes/swirls to help the soap dissolve. Don’t worry if there are still a few little bits, it will dissolve eventually. Fill up the rest of the bottle almost to the top. If you want to perfume it a little add a drop or two of essential oils. Leave it to cool with the cap off. And you’re done!

Use the same quantity of laundry liquid per load as you would for store-bought detergent.

When it cools down, it might solidify a little. Just give it a good shake and it’ll be fine. Or run in under a hot tap for a few seconds and then give it a shake. You’ll only have to do that once, it will stay liquid after that.

Let me know if you try it and what you think of it :)

* If you are lucky enough to live in France, I strongly recommend to use a ‘Savon de Marseille’, which is what I use. Otherwise, any soap made from plant-based oils and organic ingredients will do the job.