The oils
| Oil | Share |
|---|---|
| Coconut Oil | 40.0 % |
| Olive Oil (virgin / refined / olive oil) | 40.0 % |
| Castor Oil | 20.0 % |
How it is made
| Process | Cold process |
| Alkali | KOH |
| Superfat | 0 % |
| Water | 100 % of the oils |
| Iodine value | 54 |
| INS | 160 |
What the numbers say
Hardness 39 29–54
Cleansing 27 above 12–22
Conditioning 56 44–69
Bubbly lather 45 14–46
Creamy lather 30 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
8 variationsThe same soap with one thing moved. Each opens in the calculator ready to change again.
- 1 % superfat
- 3 % superfat
- Palm Kernel Oil instead of Coconut Oil
- Babassu Oil instead of Coconut Oil
- 1 % superfat and Palm Kernel Oil instead of Coconut Oil
- 1 % superfat and Babassu Oil instead of Coconut Oil
- 3 % superfat and Palm Kernel Oil instead of Coconut Oil
- 3 % superfat and Babassu Oil instead of Coconut Oil
Where these proportions come from
Superfatting a liquid soap is done after the cook, not in the lye calculation.
Craft convention: potassium hydroxide, a zero or near-zero superfat because free oil clouds the paste, and castor for a lather that survives dilution.
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.