Castille Soap history and how to make it

Castille soap dates back to the 1300's. When it was 1st made, it was made of Olive and laruel oil. In the 1500's laruel oil was not easy to come across so the Europeans dropped it and made soap with just Olive oil.

You can use olive oil pomace, extra virgin olive oil or olive oil to make Castille soap. Any kind of olive oil will work just fine. 

When making a cold process Castille soap it is best to let soap set for at least 48 hours. I have tried un molding Castille soap within 24 hours and it wasn't quite ready. 

Castille soap needs extra time to cure than other soaps. I have learned that when you let it cure for 6-8 months, the soap makes a better lather and it will last longer. 


Castille Soap Cold Process Recipe

30 oz Olive Oil
4.02 oz Lye
9.90 oz Water 


This recipe is for a brick that yields 12 bars of soap




Castille Soap makes little to no lather. Very mild soap used for infants, toddlers, kids, elderly and on anyone with skin conditions like eczema. 

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