Calculate your lye or fragrance amounts for the perfect batch!

The heavy lifting is done for you by our lye calculator! You only need to specify the number of oils in your recipe and the chosen degree of superfat. then simply press compute. The results demonstrate how much liquid and lye you require.

Visit the article using the Romantic Scents Bath Body Soaps Lye Calculator for additional details. It comes with detailed instructions and pictures that demonstrate how simple it is to use!

The article on formulating cold process soap recipes will give you a head start if you’re unsure of how much oil to use.

*Please take note that the Lye Calculator assumes that potassium hydroxide (liquid soap) and sodium hydroxide are both 90% pure (solid soap). These purity levels are typically offered to customers.



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