Liquid Hand Soap Recipe

How to Turn Bar Soap into Liquid Soap

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Once you see how easy it is to make your own liquid hand soap from a bar of soap, you'll wonder why you ever paid for it. Just follow these simple steps to make your first batch.

Time Required:

10 minutes of hands-on time

What You Need:

  • A bar of soap
  • A knife or grater
  • Water
  • A sauce pan or pot
  • Essential oil (optional)
  • Soap coloring (optional)
  • Empty soap dispensers

Here's How:

  1. Grate or finely chop a bar of soap (you'll need four ounces of soap for this recipe). You can grate your soap by hand or in a food processor.
  1. Bring four cups of water to a boil.
  2. Turn off the heat, and add the soap. Stir to melt the soap. Continue stirring until the mixture is fully combined. At this point the mixture will be very liquidy.
  3. Allow the mixture to cool for at least 15 minutes. Then, stir it again. The soap should be slightly thicker now.
  4. Allow the soap to cool for another several hours or overnight.
  5. Stir to check the consistency. If it seems too liquidy, reheat it and add more soap. If it seems too thick; reheat it and add more water.
  6. Once you're satisfied with your soap, add a few drops of essential oil and coloring, if desired.
  7. Then, pour your soap into your soap dispensers, and enjoy.


  1. Want to make a bigger or smaller batch? Just use one cup of water for every ounce of soap.
  2. This soap stores well. Make up a big batch a few times a year, so it'll be easy to refill your soap dispensers as needed. Be sure to label the container you store it in, so everyone in your house knows what's inside.
  1. Results will vary depending on the type of bar soap used (that's because different soaps have different moisture contents). Triple-milled soaps, for example, have a very low moisture content; so, you'll probably find that you need to add more water to get the right consistency. Tweak the recipe until you're happy with the results. Then, jot down what worked for you, so you can repeat the recipe again and again.
  1. Have sensitive skin? If you have a bar soap that works well for you, use it to make your liquid soap. It's a great way to avoid all the harsh chemicals and fragrances that are typically found in store-bought liquid soaps.
  2. For a super-smooth consistency, run your finished liquid soap through a blender before pouring into your soap dispensers.

Make Foaming Hand Soap

Use your homemade liquid hand soap as a base for foaming hand soap. It's ridiculously easy to make, and a great way to stretch your liquid hand soap.

More Homemade Soap Recipes

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