The Evolution of Soap

Have you ever wondered what soap is, whatashes (potassium hydroxide). The substances were
ingredients it is made out of and how it is made? Howmixed in the right concentrations and animal fat would
do you think our ancient ancestors got clean? Did theybe added along with steady stirring. Because of the
use soap at all? How has soap evolved over thetime it took the soap to cure, soap makers would
centuries to be the conventional soap we know ofcommonly repeat this process twice a year.
today. In modern day, there are so many types ofModern Day
soap available in virtually all shapes, colors and scents.Today, natural soap is most commonly made using the
PrehistoryCold Process method where lye (a base) is added to
It is believed that prehistoric man used only water as aa vegetable alkali (an acid) such as palm oil, coconut oil,
cleanser and purifier.or olive oil, which causes the chemical reaction known
Ancient Babylonas ‘saponification’. When the mixture becomes
In ancient Babylon (2800 B.C.), wood ashes werethe desired consistency, it is poured into a mold. The
burned with animal and vegetable fats and thisbars are then removed from the mold after setting
substance was used to cleanse and treat skin(approximately 24 to 48 hours). They are restacked,
disease. It was also used for a shiny hair look and ascovered and left to cure. As in the old days, the curing
hair nourishment.process can take anywhere from 3 to 8 weeks
The Greeksdepending on the formula. In modern times, animal fats
The Greeks were known to wash themselves withare typically no longer used in this process since
clay pumice and sand which stimulated the bloodvegetable oil based soaps were found to be
circulation in the body as well as removed dirt.chemically superior and can be of higher quality than
The Romanssoaps made with animal fats. Vegetable oils are more
Soap got its name when the Romans at ‘Mountreadily absorbed by the skin, while animal oils have
Sapo’, a popular location for animal sacrifices,been found to clog pores and aggravate certain skin
discovered it. Rain mixed the animal fat residue (tallowconditions, such as eczema.
from cattle) with the burned wood on the clay and aSummary
chemical reaction occurred. Women living on the banksIt is remarkable that the basics of the soap making
of the Tiber river discovered that clothes which theyprocess are essentially unchanged over the course of
washed using this substance were much cleaner andthe past 2000 years. Of course, the advent of modern
cleaned with much less effort.day technological advancement, along with our
The Early Americansunderstanding of chemistry has made the soap making
The early Americans made soap using a processprocess much more accurate and a refined science
known as ‘Cold Process’, which yielded soapand art.
comprised of animal fat and lye extracted from wood