social history - How does one wash with sand? - History ...
Sep 07, 2017· Washing with sand is still done today. Soap is generally thought of as "chemical" removal of dirt and oils, while sand is "physical" removal of dirt and oils. Because sand is fine, coarse, and usually not too absorbent, it will rinse right off. There are many common products today that work the same way. Lava brand soap is a good example.