Why Your Tap Water is Ruining Your Coffee (and How to Fix It) You’ve invested in high-quality specialty beans, mastered your pour-over technique, and even bought a precision grinder. But there’s one variable likely sabotaging your morning cup: your kitchen faucet. Most people treat water as a neutral base, but water is a chemically active solvent. The minerals inside it determine exactly which flavors are pulled out of the bean—and which are left behind. The Mineral Heroes: M