Here’s a jaw-dropper: Copper can dissolve in your own sweat. Which is why door handles in gyms get grody over time. Your sweat contains salts and acids that react with copper, forming compounds that rub off on your skin. That’s why old coins smell weird after you hold them—that smell is your hand literally eating the coin.
And get this: Copper dissolves differently in the ocean. Seawater has so much salt and oxygen that copper will slowly vanish into the brine. Sailors used to wrap the hulls of their ships in copper sheets to prevent barnacles, but they had to replace them every few years because the seawater just… ate them. R.I.P., copper cladding, you did your time.
Copper Corrosion In Water
But my favorite weird fact: You can “dissolve” copper without any liquid at all. Just heat a copper wire in a flame until it glows red, then quickly put it in alcohol vapor. The copper will “dissolve” into the vapor, turning it green, then reappear on the wire when the alcohol burns off. It’s like a magic trick for metalheads.
So, Should You Drink Copper Water?
People on TikTok are drinking from “copper water bottles” for health—a practice dating back to ancient Ayurveda. Spoiler alert: It works, but barely. Storing water in a copper vessel for 8 hours allows a microscopic amount of copper to dissolve, which might kill some bacteria. But if you think that tiny amount will cure your hangover, I have a copper bridge to sell you.
The bottom line? Copper dissolves in water like a cat gets in a bathtub—reluctantly, angrily, and only under duress. It takes acid, oxygen, and time. Your water is safe, your pennies are safe, and the Statue of Liberty is still green. So drink up, relax, and maybe don’t put a penny in your fish tank (it can kill the fish, for real). Copper is a show-off, not a pushover.
Now if you’ll excuse me, I’m going to drop a penny in my coffee and pretend I’m a scientist. Results may vary.
