Separate from it's use in the production of soap, it's used as a cleaner (often at very low concentrations). In the production of soap, it is used to break dow

Separate from it's use in the production of soap, it's used as a cleaner (often at very low concentrations). In the production of soap, it is used to break down the fats used rather than being part of the soap. https://en.wikipedia.org/wiki/Saponification https://en.wikipedia.org/wiki/Saponification