Coconut Oil Cold Process Soap

6AE332AE-2EB0-46A9-8A13-6BAC75A56984Over the past year, I’ve had several requests to create a coconut oil soap video. This was actually my first attempt at creating a 100% coconut oil soap. I’m actually not a big fan of using a high percentage of coconut oil due to my dry skin issues. However, I used a high super fat to counter that effect and managed to keep this batch from overheating. If you’d like more information, just keep reading for more details and the video. :)

Whenever I use a soap that has more than 25% coconut oil in it (even with a 6% superfat), my skin just feels too dry. Coconut oil soap is such a good cleanser that it strips too much away from my skin. The Spruce wrote a wonderful article describing this effect and why using a high superfat can help. I’m sure there are lots of other good articles about it, too. I used their recommended 20% superfat.

During this process, I also learned that pure coconut oil soap will overheat in the mold. I was aware this might happen, so I placed my first batch in the refrigerator (log mold – uncovered). Surprisingly, the batch still overheated and split slightly down the middle. The soap is fine just a bit ugly. :)

With this batch you see in the video, I used my silicone cylindrical mold (affiliate link), did some simple in-the-pot swirls, and placed the mold in the freezer as soon as possible.  That actually did the trick as far as overheating was concerned. I left it in the freezer for 24 hours (probably could have removed it sooner, but I was away from my shop), unmolded it (slid right out of the mold), and then I let it thaw for another 24 hours.

My soaping temperature was about 78º (both my lye and coconut oil were at 78º). This lower temperature caused a grainy false trace in my soap batter during the initial stages of blending. I soap at room temperature all of the time, so this happens to me on occasion. I just keep blending, and the batch will eventually smooth out and reach trace. I show this during the video below (time – 1:35) in case you’re interested.

Coconut Oil – 100%

Superfat – 20%

Lye Solution – 33% (Water = 2 x sodium hydroxide)

Pink Kaolin Clay (aka Rose Clay)
1 teaspoon hydrated clay per cup of soap

Unscented – no essential oils

To calculate the sodium hydroxide for your specific recipe amounts, you can use a soap calculator like the one at Majestic Mountain Sage:

Note: My recipes are listed in percentages so you can adjust them to fit your specific mold size. If you need help converting the percentages to grams or ounces, here’s a great article from Lovin’ Soap:



6AE332AE-2EB0-46A9-8A13-6BAC75A56984          492A564B-9644-4AFF-8EAC-AA2F5C552550



Thank you so much for reading my post!


12 thoughts on “Coconut Oil Cold Process Soap

  1. Hi, question if you don’t mind. Did you super fat with coconut oil? Did you use a water discount? I find coconut oil very drying also however,!My daughter in law uses coconut oil as a lotion. Thank You

    Liked by 1 person

    • Hi Sharon, yes, I did superfat with coconut oil. I used a 33% lye solution (water = 2 x lye). So, yes, I did discount a bit. Most soap calculators will recommend a 31% lye solution (water = 2.2 x lye). Thank you for reading my post and for asking! :) – Holly


  2. Holly, have you scented soap with cinnamon EO before? What other EO do you blend it with? Clove? sage? I’m looking for a Christmassy scent for my oatmeal soaps. Thanks.


    • I use an acrylic soap stamp that I had made by Dave at Lasercutz (he’s on Etsy). I place the stamp on the soap where I want it and then hit it with a rubber mallet. These soaps were actually just too hard to continue stamping them all. That’s why I only did the one.

      If you’ll go to my 100% Shea Butter Soap blog post, scroll down to the video, then fast forward to about 3:25, I give a demonstration of stamping a bar. Here’s the link to that post:



  3. Hallo Holly
    Is it posible to make the soap without the superfat at All, since the coconut oil is a fat, witch can react with the lye, and then make soap. Thinking survival situations.


  4. Are the percentages in Mass or volume? The article you put uses volume but in the video you use the weighing scale. Pardon my beginner questions hehe


  5. Hi! Thank you so much for the recipe :) i have a question and I really hope you can help me out! For the 33% lye solution, does it mean that it’s 33% of lye solution needed in the recipe?


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