Calculate your lye or fragrance amounts for the perfect batch!
Our Lye Calculator does the hard work for you! All you have to do is enter the amount of oils in your recipe and your preferred superfat level. Then, just hit calculate. The results show how much lye and liquid you need.
For more information, check out the Using the Bramble Berry Lye Calculator article. It includes step-by-step instructions and photos that show you how easy it is to work with!
If you're not sure how much oil to use, the Formulating Cold Process Soap Recipes article will help you get started.
*Please note: The Bramble Berry Lye Calculator assumes a 90% purity for potassium hydroxide (liquid soap) and 97% purity for sodium hydroxide (solid soap). These purity levels are commonly available to consumers.