“Silver has been used medicinally and preventatively for centuries.
Hippocrates, the father of medicine, and Pliny the Elder, a Roman scholar, both wrote of the use of silver to treat wounds and prevent disease. Water, milk and vinegar were stored in silver containers to maintain freshness and prevent contamination since ancient times.
As recently as the 1900s, people placed silver coins in milk to keep it from spoiling.
It is even used in the water supply at the International Space Station as a disinfectant. Burn wards use bandages soaked in a silver solution to prevent infection when treating 2nd and 3rd degree burns…”