The oils
| Oil | As the source prints it | Share |
|---|---|---|
| Olive Oil (virgin / refined / olive oil) | Olive oil · 90 parts | 90.0 % |
| Coconut Oil | Cocoanut oil · 10 parts | 10.0 % |
How it is made
| Process | Full-boiled |
| Alkali | Not stated |
| Superfat | Not stated |
| Water | as the source states it |
| Iodine value | 77 |
| INS | 120 |
This is a boiled soap. A kettle soap has its excess alkali salted out and drawn off before framing, so the recipe states the alkali charged, never the alkali the bar keeps. Read as a modern cold-process recipe it would be lye-heavy.
What the numbers say
Hardness 23 below 29–54
Cleansing 7 below 12–22
Conditioning 74 above 44–69
Bubbly lather 7 below 14–46
Creamy lather 16 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.
The source
E. G. Thomssen, Soap-Making Manual: A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant, D. Van Nostrand Company, 1922, p.67. Soap-Making Manual: A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant · read 2026-09-22