Imagine pH as a sour-to-bitter scale, from 0 to 14. Battery acid is a 0, drain cleaner is a 14, and your morning coffee is around a 5. The number tells you how many free hydrogen ions are swimming around.
Distilled water sits right in the middle because it’s been boiled into steam and cooled back down. This process strips away almost all impurities—minerals, bacteria, and those pesky ions. You’re left with H₂O in its purest, most neutral form.
Think of it like a blank canvas. It doesn’t lean towards being "sour" or "bitter" at all. It’s just… chill water.
Why Is This Interesting? (Or: Why Should You Care?)
Because most water you drink isn’t pH 7. Tap water varies from 6.5 to 8.5 depending on where you live. Rainwater is naturally acidic (around 5.6) thanks to CO₂. Even your own saliva changes pH after you eat a lemon.
Planet Earth Distilled Drinking Water
So distilled water is the baseline. It’s the reference point for every other liquid. Without it, we couldn’t measure the acidity of your kombucha or the alkalinity of your cleaning spray. It’s the unsung hero of science.
