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Liquid Castile Soap Making
Ingredients
  • 500g olive oil
  • I have noticed that my liquid soap is thicker if I use extra virgin olive oil. I have to do some more rigorous testing to see if this is truly the case, but it seems to be! Any type of olive oil will work for this recipe, I used semi-refined olive oil for the video.
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  • 156g water
  • Distilled or demineralised water is best (makes the clearest soap), but filtered, sanitised drinking water is also fine if it is a soft water type.
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  • 104g potassium hydroxide (KOH)
  • Mine is 90% purity. If you have a different strength, you’ll need to recalculate this recipe. This video shows you how I do it.
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  • 104g vegetable glycerine
  • This is an optional ingredient. If you don’t have glycerine you can replace it with another 104g water.
  • note: e aware that glycerine acts as a solvent in this recipe and does wonders to accelerate saponification and prevent separation of oils and lye water as the soap paste is mixed and cooked. This recipe requires a lot more patience and stick blending without the glycerine, but it can be done! Glycerine also adds emollience and extra moisture to the recipe due to its humectant properties, so it’s great to use if you have it.
Steps
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