100% Coconut Oil Soap (From The Spruce Crafts)

Good information:  Qualities of Soapmaking Oils

The following article is from: 

https://www.thesprucecrafts.com/coconut-oil-soap-with-superfat-516603

There are two long-held soap making rules:

• Don’t use more than 30 percent coconut oil in a recipe—it will be too drying.
• Don’t superfat more than about 8 percent to 10 percent or the soap will be soft, have poor lather, and will be prone to the dreaded orange spots or spoilage.

This soap recipe, however, breaks both of those rules by using 100 percent coconut oil while increasing the superfat percentage to 20 percent. The pros of coconut oil and superfatting combine to cancel out the cons of using a high amount of coconut and using a high superfat percentage, resulting in a really lovely bar of soap.

Coconut oil is not really “drying”—it’s just super cleansing. It cleans your skin so well that it strips the oils off of your skin, making it feel dry. Coconut oil itself is good for your skin. Having 20 percent extra oil in the soap mitigates the "drying" effect, resulting in a bar that's really mild.

Dreaded orange spots (or DOS) are caused by the free oils in the soap going rancid. In any bar of soap where there is any amount of superfatting, there is going to be a certain percentage of oil left behind. In a standard, balanced soap recipe, you’re going to have a combination of soft, more fragile oils like canola, sunflower, almond, or even olive along with long-lasting hard oils like tallow, palm, or coconut.

Coconut oil is a long-lasting stable oil. Even if left “free” in the soap at a high percentage, it will be sturdy and shelf-stable for one to two years. Add to that stability, and it makes a super lather, demonstrating why a 100 percent coconut oil bar of soap cancels out the lathering and spoilage issues commonly associated with a high superfat percentage.