Also known as cold saponification.
Saponification is a chemical reaction provoked by mixing a fat (oils, butters, etc) with a strong base (for solid soap, the strong base is sodium hydroxide).Like its name indicates, cold process soap making does not use heat.Cold process soaps are saponified at room temperature, with no warming or rinsing. Cold process soapmaking is quite long. Once the mixture has been poured in a mold, the soap must be cured.
This drying process is typically a minimum of 4 weeks. This allows the saponification to completely finish and the soap to dry. In cold process soaps, the ingredients are not heated, which allows them to conserve their beneficial and natural properties. This type of soap is also less aggressive because of the surgras present.
The skin retains its hydrolipidic film after having been washed, which gives it extra hydration and protection. This is a real advantage for when we don’t have time to put on our lotions after the shower!
