Hi, there!

Have you ever been to Castile? It is a historical region in the heart of the beautiful country of Spain. In fact, Madrid has traditionally been considered Castilian, as well!

But even if you haven’t been there yet, you can quickly get something closely connected and traditional to that region! Today I will show you 5 recipes how to make castile soap at home. But first, let’s see


What is castile soap, and why it is so popular?

Homemade castile soap has only one core ingredient – olive oil. Why? Because Spain produces about half of global olive oil production!

Namely because “olive” and “Spain” are so connected, and Castile is the historical heart of Spain, in the modern times olive oil soap has become popular as “castile” soap.

Now you know the etymology of this product:)Castile Soap Homemade Recipe

Why is it so popular? The answer is simple! Needless to say how valuable to our skin olive oil is!

In the modern times, the soap making arts has incredibly developed. Nowadays people know much more about blends and combinations of ingredients.

It is inevitable that different versions and enhancements of traditional recipes appear. They lead to paramount skin and hair treatment.

Today I will show you both: a classic castile soap recipe and a few favorite modern versions, with different proportions of palm and cocoa oil added.

Before you start with making soap manipulations, you will want to assure the appropriate equipment.


Preparation for start

What you will need beforehand is as follows:

  1. Stainless steel pot – here you will “cook” the soap;
  2. Whisk, or even better a hand blender – you will have to stir the mixture;
  3. Rubber gloves – as you will work with lye, you need to be on the safe side. In case, you are more precautious, you may wear a mask to cover your mouth and goggles to protect your eyes.
  4. Soap molds – here you will pour the mixture and wait for the soap to harden and get ready. Any plastic or metal containers you have at home will do the job. Make sure you will not go to use them for food purposes in the future.

OK. Let’s assume you’ve got yourself covered. Here we come to the recipe’s part.

Classic castile soap recipe


  • 50 fl oz (1.5 l) olive oil
  • 7 oz (200 gr) lye (caustic soda)
  • 16 fl oz (500 ml) cold water

Pour the water into the stainless steel pot. Add the lye and stir well. The mixture should be cool (around 95 degrees Fahrenheit/35 degrees Celsius), so give it half an hour or so to cool down.How To Repare Castile Soap At Home

Add olive oil in the pot (it should be an average, cool temperature), and begin stirring. You can do it traditionally – by hand. But it will take a long time.

So you better use a hand blender for the purpose. Thus, it will take around 15 minutes, until the mixture gets thick like pudding or honey.

Visually – you have to form a trace with the blender.

You are ready for the next step. Pour the soap mixture into the mold (could be more than one) you have prepared for the case. Cover it and leave for 2-3 days.

You are almost done! You have one more step left – take the hard soap substance out of the mold. Cut it into small pieces.

The size is up to you – this will be the soap you will use, so it has to be suitable for you.


Store in cool and dry place for a few weeks, until it is completely dry. Make a visual check. In 3-4 weeks you should not see moisture on the bars.

And that’s it! You have your homemade castile soap! Congratulations!

Now let’s go through the enriched modern recipe options.


Modern castile soap recipes

Why would you want to do changes in the recipe? Because typically the classic version doesn’t lather too much. That is why a popular option among DYIers is to add palm oil and coconut oil in different proportions. Find them below:

Option #1


  • 40 oz. (1.2l) olive oil
  • 5 oz. (150 ml) palm oil
  • 5 oz. (150 ml) coconut oil
  • 16 oz. (470 ml) water
  • 7 oz. (200 gr) lye

Option #2


  • 30 oz. (900 ml) olive oil
  • 10 oz. (300 ml) palm oil
  • 10 oz. (300 ml) coconut oil
  • 16 oz. (500 ml) water
  • 7 oz. (200 gr) lye

Option #3


  • 30 oz. (900 ml) olive oil
  • 5 oz. (150 ml) palm oil
  • 10 oz. (300 ml) coconut oil
  • 5 oz. (150 ml) canola oil
  • 16 oz. (500 ml) water
  • 7 oz. (200 gr) lye

Option #4


  • 40 oz. (1.2 l) olive oil
  • 10 oz. (300 ml) coconut oil
  • 16 oz. (470 gr) water
  • 7 oz. (200 gr) lye


The soap making process is the same as the classic method. The only difference is you must add not only olive oil in the pot but coconut oil, palm oil or canola oil (depending on the recipe used), as well.

Make sure all used oils are liquid before the procedure.

WATCH this short video guide:



Now you know what castile soap is and 5 recipes how to make castile soap at home. Experiment to see which one suits you best regarding lathering, aroma, etc. If you want, you may add a small amount (1-2 fl oz)of fragrances or essential oils.

Homemade natural cosmetics has its charm. Of course, you can always jump to the next level and find proven and enriched natural solutions for your skin care and hair care.

Irrespective what methods you use, TAKE ACTION, turn natural and be responsible for your health and beauty!

I would love to hear from you! Do you (plan) making a homemade castile soap? Leave me a comment, and I will answer you!


To your successful castile soapmaking,












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  1. I have never made soap myself before, but I have had people give me homemade soap as a gift and I loved it. There is just something about homemade items that feel right, because you know they were made with love. It always feels better to use a product that has natural ingredients in it as well. There are just too many chemicals that I can’t pronounce in lots of beauty care products now a days that it’s scary. I’m always looking for a more natural and safe alternative to everyday products. I may just have to whip up a batch of castile soap of my own. Thanks for this very informative post.


    1. Hi, Tabitha,

      Thanks a lot for your comment! You touch a few reasonable topics here, and I want to step on your points and elaborate a bit further:

      1. Fully agree, it’s always better when you make homemade products with a pinch of “love” as an additional ingredient:)
      I wouldn’t advise anyone doing it just for the sake of doing it, If you are going to feel uncomfortable – you better purchase the stuff.
      2. Regarding the natural products – sometimes there is a misconception among people what is “natural” and what is not. The common truth is homemade products are “more natural” than the bought ones. This is not always true – I’ve written a blog post on this topic. You might want to have a look at it here.
      3. A Homemade product is a fantastic approach towards our body, skin, and hair. I very often recommend them and use them. At the same time, I believe there are many professional, proven and trustworthy natural products, we could find on the market. They go one step further in helping us being healthy. We should get an advantage of them, as well.

      Wish you good luck,


  2. Very interesting indeed! You really covered it well in this post on how to make castile soap. We are so used to buy everything in the shops that it will be a nice change to make this soap ourselves. And as you said it will be good for our skin health. Thank you.

    1. Hi Nicolaas,

      Thank you for the comment!

      I offer a lot of homemade recipes and advice in my posts. I believe it is very often possible to make some fundamental stuff at home when it comes to detergents and beauty products.

      Castile soap is such a primary product. At the same time, there is a whole natural products’ industry, which has developed in the past years. It offers formulas and solutions not everyone can make at home, and it is not needed, as you can purchase a proven and reliable product.

      So, I believe we can take the best of both worlds:)

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