Oil Properties Glossary
Look up SAP values, fatty acid profiles and soap-quality stats for every oil, fat and wax in the Lye Calculator. Search, sort by any column, or click a row for the full breakdown.
Open the Lye CalculatorWhat the numbers mean
- SAP value
How much lye (NaOH or KOH) it takes to turn one gram of the oil into soap.
- Iodine 41–70
How unsaturated the oil is. Higher means a softer bar that is more prone to going rancid.
- INS 136–165
An overall bar-quality score. Higher means a harder, longer-lasting bar.
- Hardness 29–54
How firm the finished bar is.
- Cleansing 12–22
How strongly the soap removes oil. Too high can feel drying.
- Conditioning 44–69
How gentle and moisturizing the bar feels.
- Bubbly 14–46
Big, fluffy lather.
- Creamy 16–48
Dense, stable lather.
Ranges are typical for a whole recipe, not a single oil. Click any oil in the table for its fatty acid profile and how it compares.
Look up SAP values, fatty acid profiles and soap-quality stats for every oil, fat and wax in the lye calculator. Search, sort by any column, or click a row for the full breakdown.
| Oil / Fat | SAP NaOH | SAP KOH | Iodine | INS | Hardness | Cleansing | Conditioning | Bubbly | Creamy |
|---|
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