castile soap

The Easiest Way To Make Homemade Castile Soap

The name Castile soap comes from the Castile region in which it was first made.  This soap is made only from vegetable fat(very often olive oil is used) which is very mild on your skin. Castile soap doesn’t dry off your skin like most of the other soaps do.

You can easily make castile soap at home and use it as a beauty or household product. We will show how.

 How To Make Homemade Castile Soap

All you need for this recipe is:

  • 1,5 liters virgin olive oil
  • 500 ml distilled water
  •  178 grams sodium hydroxide


Place the olive oil on the stove and start warming it (you can also use the microwave to heat the olive oil). During this time you dissolve sodium hydroxide. This is actually the hardest part of making soap. To dissolve sodium hydroxide you need protective equipment, rubber gloves, and plastic glasses as sodium hydroxide will make a chemical reaction that releases heat and if you aren’t careful it can cause burns. So please be careful and if you don’t have the right equipment don’t start making this soap.

To begin with, take the sodium hydroxide and water. Place the water in a deep plastic bowl (don’t use glass because the sodium hydroxide can react with it), put your gloves and glasses, and slowly pour the sodium hydroxide into the water.  Gently mix the liquid with a large metal spoon.

This liquid will be heated rapidly because of the chemical reaction, and a little bit of steam will come out of it, let it cool for some time outside far away from the reach of children and pets before using it for making soap.

When the olive oil is warmed up, put it in a larger bowl, with a lid, and add slowly the water-soluble sodium hydroxide and mix well all the way until you get dense liquid. You should use a hand blender because you can’t get the density by using a spoon.

Put the resulting mixture into the appropriate shallow mold and let it harden overnight. Check the soap in the morning, if on top it has a film of it or it looks like it’s separated, throw away the soap and start again.

Cut the soap into squares the next day.  From this quantity, you will get around 30 bars of castile soap.

To see how it’s done watch the video down below:

If you don’t want to use lye (sodium hydroxide solution), you can make Castile liquid soap by using half a bar of olive oil soap and essential oil. First, boil 3 cups of water and then add the soap in it to dissolve. Mix the liquid occasionally with a wooden spoon. Next, let the liquid cool down and add the essential oil of your choosing. Then, add 3 cups distilled water in the mixture to make it more watery because this liquid soap has a thick consistency. Afterward, pour the mixture into an empty bottle with a pump and that’s it.

Reference: How to Make Soap (With or Without Lye)
How to Make Castile Soap


Leave a Reply

Your email address will not be published. Required fields are marked *