You don’t need a PhD in chemistry to bring your RO water back to life. The easiest hack is adding a remineralization cartridge to your existing system—brands like iSpring or APEC make drop-in stages that fit most under-sink setups. These cartridges use natural coral calcium or tourmaline, slowly releasing minerals as water flows through.
No cartridge? No problem. You can add a pinch of Himalayan pink salt or a drop of concentrated trace mineral drops (sold at health stores) to a gallon of RO water. This re-adds electrolytes without turning your water into brine. It’s the same principle as adding a lemon slice—simple, effective, and Instagram-worthy.
All we know about Re-mineralization of RO water!
Pro tip: if you’re super into hydration aesthetics, keep a glass carafe of remineralized RO water on your counter with a few slices of cucumber and mint. It looks fancy, tastes better, and makes you look like you have your life together—even if you’re still wearing yesterday’s sweatpants.
The “Dead Water” Debate: What to Ignore
You’ll hear claims that RO water is “acidic” and will destroy your gut health or cause tooth decay. The reality? Your stomach acid is far more acidic than any filtered water (pH 2 vs. pH 6 or 7), so that’s a non-issue. And tooth decay arises from sugar and bacteria, not from slightly altered water chemistry.
What you should pay attention to is your own body. If you feel more sluggish or crave salty foods after switching to RO water, that’s a gentle nudge to remineralize. Think of it as your body’s way of saying, “Hey, could you maybe add a splash of mineral back in?”
One more fun fact: astronauts on the International Space Station drink recycled urine filtered by RO—and they add minerals back for taste and health. If it’s good enough for space explorers, it’s certainly not “dead.” It’s just perfectly refurbished.
