Yes, you have to actually drink a little. Take a small sip and let it sit on your tongue for a second. A metallic taste often means iron or copper from old pipes, which isn't dangerous but can make your morning coffee taste like a used penny.
A salty or bitter flavor? That could be a sign of high mineral content or, in rare cases, chemical contamination. If your water tastes like a poorly made cocktail, it's worth investigating more.
Leftover Coffee Test
Here's a pro tip: brew a pot of coffee with your tap water. If the coffee tastes weird—like someone dropped a sock in the filter—your water is the culprit. Coffee is basically a truth serum for water.
How to Test Drinking Water at Home: A Step-by-Step Guide - Cultivator
I once blamed my terrible morning brew on old beans. After switching to bottled water, I realized my tap water had been sabotaging my caffeine ritual for months. Don't let your water ruin your most important relationship of the day.
