3d. Soap Bars - Soap Calculator - Soap Manufacturing
The oldest type of laundry soap bar has a cubic soap, stamped on 6 faces, with a weight of 400 grams or more. This type of laundry soap bar was produced in France and was called Marseille Soap. The production process of pure Marseille soap is the full boiled saponification plant and the raw materials used in the past was animal fats and oils.