Head-to-head

Lard vs Beef Tallow

hard
hard

Substitution factor

NaOH SAP A 0.1380NaOH SAP B 0.1410A / B = 0.1380 / 0.1410

0.9787

Multiply your lye amount by 0.9787 when swapping Lard for Beef Tallow.

Inverse 1.0217 when swapping Beef Tallow for Lard.

500 g swap · pure NaOH

500 g Lard
69.00 g NaOH
500 g Beef Tallow
70.50 g NaOH
Lye_A = Lye_B × factor
70.50 × 0.9787 = 69.00
Reverse pair

Constants

SAP, iodine, INS

MetricLardBeef TallowΔ A−B
NaOH SAP (pure)

0.1380

0.1410

-0.0030
KOH SAP (pure)

0.1930

0.1990

-0.0060
KOH SAP (90%)

0.2144

0.2211

-0.0067
Iodine value

57

45

+12
INS

139

147

-8
Max % of oils

100%

50%

+50
Hardness class

hard

hard

Trace

slows

slows

INCI (pre-sap)

Lard

Tallow

INCI NaOH salt

Sodium Lardate

Sodium Tallowate

INCI KOH salt

Potassium Lardate

Potassium Tallowate

Fatty acids

Eight-acid profile

MetricLardBeef TallowΔ A−B
Lauric C12:0

0.0%

2.0%

-2.0
Myristic C14:0

1.0%

3.0%

-2.0
Palmitic C16:0

28.0%

29.0%

-1.0
Stearic C18:0

13.0%

18.0%

-5.0
Ricinoleic C18:1-OH

0.0%

0.0%

0.0
Oleic C18:1

46.0%

42.0%

+4.0
Linoleic C18:2

6.0%

3.0%

+3.0
Linolenic C18:3

1.0%

1.0%

0.0

Quality

Physical contribution

MetricLardBeef TallowΔ A−B
Hardness

42.0

52.0

-10.0
Cleansing

1.0

5.0

-4.0
Conditioning

53.0

46.0

+7.0
Bubbly lather

1.0

5.0

-4.0
Creamy lather

41.0

47.0

-6.0
Longevity

41.0

47.0

-6.0