Artisan Cold Process Soap Calculator

Tallow Be Thy Soap Lab

A calm, premium formula bench for accurate lye, water, and oil profile calculations in your browser.

Batch setup

Core batch controls and unit preferences.

Recipe name

Total oilsgrams

Unit

Superfat

Lye type

Recipe actions

Oil composition

Add, remove, and fine-tune oils by percentage or by weight.

Add oil

Entry mode

Beef tallow

SAP (NaOH): 0.141

Percent

Weight (g)

Live share: 50.00%Live weight: 500.00 gLye for this oil: 66.97 g

Olive oil

SAP (NaOH): 0.134

Percent

Weight (g)

Live share: 30.00%Live weight: 300.00 gLye for this oil: 38.19 g

Coconut oil 76

SAP (NaOH): 0.183

Percent

Weight (g)

Live share: 20.00%Live weight: 200.00 gLye for this oil: 34.77 g

Water and lye settings

Switch between water modes without losing the current formula relationship.

Water calculation mode

Water as % of oils

Lye concentration

Water : lye ratio

Active mode: Lye concentration. The other two fields stay in sync with the live calculation so you can switch modes cleanly.

Formula summary

Live totals for the current formula.

Total oils

1000.00 g

NaOH

139.94 g

Water

284.11 g

Total batch

1424.05 g

Before cure

Fragrance

Add per IFRA

Placeholder for V1

Percent total

100.00%

Balanced at 100%

Lye concentration33.00%

Water : lye ratio2.03:1

Water as % of oils28.41%

Soap qualities

Estimated from weighted oil profile data for quick formulation guidance.

hardness

45.90

cleansing

13.40

conditioning

51.60

bubbly

13.40

creamy

32.50

iodine

49.00

ins

161.60

Warnings and notes

Helpful flags while building the recipe.

No warning flags at the moment. Percentages are balanced and the water/lye settings are within common artisan ranges.

Per-oil lye detail

Each oil's contribution to the total lye demand.

Beef tallow

50.00% / 500.00 g

NaOH

66.97 g

Olive oil

30.00% / 300.00 g

NaOH

38.19 g

Coconut oil 76

20.00% / 200.00 g

NaOH

34.77 g