 Making SoapCastile soap is a name used in English-speaking countries for soap made exclusively from vegetable oil, as opposed to animal fat. Examples of oils used in castile soaps include olive, coconut, almond, hemp, and jojoba. Castile soap is also sometimes called Seafarer's soap because of its broad range of uses.
According to some authorities, Castile soap originated in the Kingdom of Castile, where it was made from olive oil only; importations of "Castile soap" through Antwerp appear in the London port books of 156768
Another theory is that modern-day castile soaps are conceptually similar to, and most likely derived from the so-called white soap that has traditionally been manufactured in Northern Italy since the early 1600s. From Venice, where the oldest white soap factories were established, olive oil-based soap reached the Greek island of Crete first, and Southern France (Marseille) at a later stage.
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