Taste is the biggest clue. Ever had water that tastes flat or metallic? That’s likely low pH (more acidic). Water that tastes “soft” or slightly sweet? That’s often a higher pH.
I once bought a cheap bottle from a vending machine, and it tasted like I was licking a battery. I checked—it was 5.8 pH. Not dangerous, but definitely not pleasant.
If you’re a coffee or tea drinker, you’ve seen pH in action. Adding a splash of acidic water to coffee can turn it bitter. Using higher pH water makes the brew smoother. It’s like being a chemist, but with a mug.
Should you actually care?
Here’s the warm, honest answer: probably not much, unless you have specific health issues. People who suffer from acid reflux or stomach sensitivity might find higher pH water (around 8.0 to 9.0) a little calming. Doctors, however, will tell you that no water cures disease.
Expensive Bottled Water Brands
But here’s where it gets fun: if you’re curious, you can buy a cheap pH test kit. Dip a strip in your tap water, then in your favorite bottled brand. It’s like a science experiment for grown-ups.
The first time I tested my tap water, I found it was 7.3—just a hair alkaline. I felt oddly proud of my city. Meanwhile, a friend’s tap water was 6.2, and he’d been buying alkaline water for years. He literally said, “My faucet is making sour water?” We laughed.
