Coffee Bean Oil, roasted
Saponification values, fatty acid makeup, and what this oil does in a bar of soap.
Saponification values
Grams of lye needed to saponify one gram of coffee bean oil, roasted. Multiply by your oil weight, then apply your superfat.
- NaOH (bar soap)
- 0.128
- KOH (liquid soap)
- 0.18
- Iodine
- 87
- INS
- 93
INCI: Coffea Arabica (Coffee) Seed Oil
Fatty acid profile
These figures account for 88% of coffee bean oil, roasted. The remainder is made up of fatty acids this model does not track, so treat the derived qualities below as indicative rather than complete.
| Fatty acid | Percentage |
|---|---|
| Palmitic | 40% |
| Linoleic | 38% |
| Oleic | 8% |
| Linolenic | 2% |
Soap qualities at 100%
What a bar made entirely of coffee bean oil, roasted would score. Almost nobody soaps a single oil at 100% — this is here so you can see what the oil contributes to a blend. The shaded band is the range most makers aim for in a finished recipe.
What that means in a recipe
High in polyunsaturated acids (linoleic and linolenic together, 40). These are the ones associated with the orange spots and rancid smell that develop in older bars, so use fresh oil, keep the percentage modest, and do not expect a long shelf life.
Derived from the numbers above rather than written by hand, so it stays in step with the data. Tendencies, not guarantees — your oils, water, and technique all move the result.
Oils that behave similarly
Closest matches by fatty acid makeup — the usual starting point when you have run out of coffee bean oil, roasted and need a substitute. Check the lye maths again after swapping: SAP values differ even between oils that behave alike.
- Coffee Bean Oil, greenSAP 0.132 NaOH
- Horse OilSAP 0.14 NaOH
- Crisco, new w/palmSAP 0.138 NaOH
- Wheat Germ OilSAP 0.13 NaOH
- Rabbit FatSAP 0.143 NaOH