The oils
| Oil | Share |
|---|---|
| Stearic Acid (triple-pressed, ~50:50 C16/C18) | 30.0 % |
| Coconut Oil | 25.0 % |
| Olive Oil (virgin / refined / olive oil) | 25.0 % |
| Castor Oil | 10.0 % |
| Shea Butter | 10.0 % |
How it is made
| Process | Cold process |
| Alkali | NaOH + KOH |
| Superfat | 3 % |
| Water | 60 % of the oils |
| Iodine value | 37 |
| INS | 173 |
What the numbers say
Hardness 59 above 29–54
Cleansing 18 12–22
Conditioning 38 below 44–69
Bubbly lather 26 14–46
Creamy lather 51 above 16–48
Computed from the fatty acids of the fats above. The bands are what the craft has settled on, not chemistry — a bar outside one is not wrong.
Try it differently
5 variationsThe same soap with one thing moved. Each opens in the calculator ready to change again.
Where these proportions come from
Craft convention: a dual-alkali soap whipped to a cream, with stearic acid for body. The KOH share sets how soft it stays.
A canonical formulation: the proportions the craft has settled on for this kind of soap. Not transcribed from a document, and not copied from anywhere.