Oil and lye are two essential components of saponification process whose secrets were probably learned by the Arab population, who knew them perfectly. This is how the soap has become a part of the tradition of the Jamsine Coast (Costa dei Gelsomini) over the centuries. For a long time it was considered a “poor” product, born from the peasant custom of transforming and giving new life to food waste such as olive oil, no longer suitable for consumption. But its tradition has been handed down and refined, until reaching the contemporary families that still today make the soap using “old” olive oil and aromatizing it with citrus fruits or officinal herbs.