Head-to-head

Olive Oil vs Beef Tallow

soft
hard

Substitution factor

NaOH SAP A 0.1340NaOH SAP B 0.1410A / B = 0.1340 / 0.1410

0.9504

Multiply your lye amount by 0.9504 when swapping Olive Oil for Beef Tallow.

Inverse 1.0522 when swapping Beef Tallow for Olive Oil.

500 g swap · pure NaOH

500 g Olive Oil
67.00 g NaOH
500 g Beef Tallow
70.50 g NaOH
Lye_A = Lye_B × factor
70.50 × 0.9504 = 67.00
Reverse pair

Constants

SAP, iodine, INS

MetricOlive OilBeef TallowΔ A−B
NaOH SAP (pure)

0.1340

0.1410

-0.0070
KOH SAP (pure)

0.1880

0.1990

-0.0110
KOH SAP (90%)

0.2089

0.2211

-0.0122
Iodine value

85

45

+40
INS

109

147

-38
Max % of oils

100%

50%

+50
Hardness class

soft

hard

Trace

slows

slows

INCI (pre-sap)

Olea Europaea (Olive) Fruit Oil

Tallow

INCI NaOH salt

Sodium Olivate

Sodium Tallowate

INCI KOH salt

Potassium Olivate

Potassium Tallowate

Fatty acids

Eight-acid profile

MetricOlive OilBeef TallowΔ A−B
Lauric C12:0

0.0%

2.0%

-2.0
Myristic C14:0

0.0%

3.0%

-3.0
Palmitic C16:0

14.0%

29.0%

-15.0
Stearic C18:0

3.0%

18.0%

-15.0
Ricinoleic C18:1-OH

0.0%

0.0%

0.0
Oleic C18:1

71.0%

42.0%

+29.0
Linoleic C18:2

11.0%

3.0%

+8.0
Linolenic C18:3

1.0%

1.0%

0.0

Quality

Physical contribution

MetricOlive OilBeef TallowΔ A−B
Hardness

17.0

52.0

-35.0
Cleansing

0.0

5.0

-5.0
Conditioning

83.0

46.0

+37.0
Bubbly lather

0.0

5.0

-5.0
Creamy lather

17.0

47.0

-30.0
Longevity

17.0

47.0

-30.0