Soap Recipe Calculator

Lye Calculator

How to use this Calculator:-

1. Enter Recipe Name and Date
2. Select Lye Button NaOH or KOH
3. Enter Lye Discount/Superfat figure. 5% default
4. Select Weight units button
5. Enter Water as percentage of total oil weight 38% default
6. Enter weights for the oils included in your recipe, all using the same weight
units i.e. all grams or all ounces
7. Click "Calculate Lye by Weight" Button
8. Recipe including percentages will be displayed in the Notes area at the bottom
of the page.
Enter any notes or explanations into the Notes box then
copy and paste elsewhere or select text in Notes box and "Print, Selected"

Recipe Name

Date

Select Lye

NaOH

KOH

Lye Discount/Superfat

% (Default 5% Recommended 3-8%)

Select Units

grams

ounces

pounds

Water

% of Oils Total Weight (Default 38% for beginners)

Oil Name	Oil Weight	Sap. No. (NaOH)	Sap. No. (KOH)	Discounted Lye Weight

Lye Name			Total Oil Weight
Lye Concentration			Total Lye Weight
Water : Lye Ratio			Total Water Weight

Notes:

This Lye Calculator has been developed using Saponification numbers published at http://www.fromnaturewithlove.com/resources/sapon.asp
and comparison with numbers used in "SoapCalc". It should also represent the commonly available oils in New Zealand.

Please contact Soapcraft if you have problems using this Calculator, have spotted discrepancies in the saponification numbers used, or would like to see oils added that are not included in this list.

Lye Calculator by KiwiGraham @ gmail . com