A dirty history of soap: The rather gross ingredients used to make things clean
By Judith Ridner, Professor of History, Mississippi State University “Wash your hands often with soap and water for at least 20 seconds.” That’s what the CDC has advised all Americans to do to prevent the spread of COVID-19 during this pandemic. It is common-sense advice. The surfactants found in soap lift germs from the skin, and water then washes them away. Soap is inexpensive and ubiquitous; it’s a consumer product found in every household across the country. Yet few people know the long and dirty history of making soap, the product we all rely on to clean our skin....
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