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Soap making oils

Every oil below lists a cited SAP (saponification) value and its fatty-acid profile, and each has a live lye calculator pre-loaded with that oil. Pick an oil to see how it behaves in a bar — or jump straight to the full calculator.

Common soaping oils

The everyday base and accent oils most cold-process and hot-process recipes are built from.

Exotic & specialty oils

Butters and specialty oils used in smaller amounts for their conditioning or luxury feel.

Hardening fatty acids

Single fatty acids added in small amounts to firm up a bar; still saponified, so still in the lye math.