1,375 Wild Thyme Whole Industrial In perfumery, oil of Serpolet ( so it’s commonly named) is chiefly used for soap. The flowering tops, macerated for 24 hours or so in salt and water, are made into a perfumed water. It is much picked for the extraction of its essential oil and when distilled, 100 kilos of dried material yield about 150 grams of essence (about 6 OZ.). The flowering tops, macerated for 24 hours or so in salt and water, are made into a perfumed water. 8,443