Frequently Asked Questions
What is the Coin of Harmony?
The Coin of Harmony is a 1.5 inch coin made of silver and copper. Silver and copper kill bacteria on contact.
How do you use the Coin of Harmony?
Simply place the Coin of Harmony within your reusable water bottle, pitcher or canister, fill with water and shake.
The Coin of Harmony is recommended to be used in a drinking vessel with a lid to prevent accidental swallowing of the Coin.
Can silver and copper harm drinking water?
Silver has been used in teeth fillings for decades, and almost all drinking water flows through copper pipes before it gets to you.
How does the Coin of Harmony work?
Silver has been used since ancient times to keep liquids pure and fight the spread of diseases. Modern research has shown that silver can stop kill bacteria, fungi, and some viruses from growing. This happens because of a special reaction between silver and oxygen. Silver can hold onto oxygen and use it to break down harmful microorganisms completely.1
Copper has strong germ-killing abilities that have also been used for centuries to disinfect water, surfaces and even skin. Copper ions can kill bacteria, fungi, and viruses, making it useful in health-related applications. Today, copper is used to reduce the spread of hospital germs, fight foodborne illnesses, and treat fungal infections in wounds.2
Does the Coin of Harmony remove all impurities from water?
The Coin of Harmony kills bacteria, fungi and viruses in water on contact, but it does not filter out physical impurities, chemicals or contaminants.
What is the history of using Silver and Copper as a disinfectant?
During the early pioneer days in America when water needed to be transported over long distances, it was a common practice to drop silver coins into barrels to preserve keep water clean over the journey.3
Even longer ago in history, it is reported that privileged families that used silver eating utensils had reduced mortality rates during epidemics of plagues and other infections diseases.3
Who would benefit from a Coin of Harmony?
Anyone who uses a reusable water bottle would benefit from a Coin of Harmony.
Why do I need a Coin of Harmony?
According to a food safety expert, bacteria in room temperature water can double their amount almost every 20 minutes.4
According to a study from Treadmill Reviews, a reusable drinking container has more than 300,000 colony-forming units (CFU’s) of bacteria per square centimeter. That’s more bacteria than a kitchen sink or a dog bowl.5 Even worse. The spot your mouth touches has more than 900,000 CFU’s per square centimeter.5
Do you still have to wash your water bottle with the Coin of Harmony?
The Coin of Harmony does not replace regular cleaning of your water bottle.
What is the maintenance for the Coin of Harmony?
With repeated use, the silver and copper in Coin of Harmony may turn foggytarnishpart. This is a chemical reaction and does not affect the Coin’s ability to purify water.6 If you like, you can scrub it like you would clean silverware to return the shine. This chemical reaction tells you the Coin is made of real silver and copper.
The Coin of Harmony will last for years without losing its ability to kill bacteria.
Is the Coin of Harmony safe for all types of water bottles?
Yes, the Coin of Harmony is safe to use with reusable water bottles, including those made of stainless steel, glass and BPA-free plastic. However, it is not recommended for use with bottles that contain coatings or materials that could react with silver and copper.
Can I use the Coin of Harmony with other beverages?
The Coin of Harmony is designed to be used in water bottles. It is not recommended for use with beverages.
Can I travel with the Coin of Harmony?
Yes! The Coin of Harmony is compact and lightweight, making it an excellent travel companion for keeping your water purified wherever you go.
References
1. Davies, R. L., & Etris, S. F. (1997). The development and functions of silver in water purification and disease control. Catalysis Today, 36(1), 107–114. https://doi.org/10.1016/S0920-5861(96)00203-9
2. Borkow, G., & Gabbay, J. (2009). Copper, An Ancient Remedy Returning to Fight Microbial, Fungal and Viral Infections. Current Chemical Biology, 3(3), 272–278. https://doi.org/10.2174/187231309789054887
3. (PDF) History of the Medical Use of Silver. (n.d.). ResearchGate. https://www.researchgate.net/publication/26330393_History_of_the_Medical_Use_of_Silver
4. Wagner, J. (2024, September 10). Reusable water bottles have more bacteria on them than dog bowls and toilet seats, study finds. Cbsnews.com; CBS Minnesota. https://www.cbsnews.com/minnesota/news/reusable-water-bottle-cleaning/
5. Water Bottle Germs Revealed 2020 | TreadmillReviews.net. (n.d.). https://www.treadmillreviews.net/water-bottle-germs-revealed-2019/
6. Grass, G., Rensing, C., & Solioz, M. (2010). Metallic Copper as an Antimicrobial Surface. Applied and Environmental Microbiology, 77(5), 1541–1547. https://doi.org/10.1128/aem.02766-10
