Castile soap is an olive oil-based soap made in a style similar to that originating in the Castile region of Spain. == History == The start of Castile soap goes back to the Levant, where Aleppo soapmakers have made hard soaps based on olive and laurel oil for millennia.
Castile soap is an olive oil-based soap made in a style similar to that originating in the Castile region of Spain. == History == The start of Castile soap goes back to the Levant, where Aleppo soapmakers have made hard soaps based on olive and laurel oil for millennia.
Source: Wikipedia "Castile soap" · CC BY-SA 4.0
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