First suspect: your pipes. Old copper pipes are the usual culprits. When water sits in them too long, it picks up tiny mineral particles. That’s why the first gulp in the morning tastes like a coin collection.
It’s not actual metal in your mouth. It’s a chemical reaction. Your saliva is the real star here. When water hits your tongue, the minerals react with your spit, creating a small electrical charge. Your brain interprets that zing as “metal.” You’re basically licking a tiny battery.
Low pH? More Like Low Fun
Acidic water is a troublemaker. If your water’s pH is below 7, it gets aggressive. It starts dissolving tiny bits of copper, iron, or zinc from your plumbing. The result? A sharp, penny-flavored surprise.
This happens more with well water. Rain is naturally acidic. It picks up carbon dioxide from the air. When it hits your well, it’s already in a sour mood.
