Here’s the deal: Boiling water does not remove fluoride. Think of fluoride like that one friend who shows up to every party and refuses to leave, no matter how loud you play the music. Fluoride is a mineral, and minerals don’t just evaporate into thin air when water gets hot.
When you boil water, you’re basically just making the water molecules get all excited and dance around until some turn into steam. The fluoride? It stays right there, hanging out in the pot like a stubborn stain on your favorite shirt. It doesn’t disappear—it just gets more concentrated as the water level drops.
Imagine you’re making a really salty soup. If you boil it down, the salt doesn’t vanish; it just gets saltier. Same with fluoride. So unless you’re boiling that kettle until it’s bone-dry and you’re scrubbing the residue off the bottom, you’re not getting rid of it.
Why This Myth Won’t Die (And Why It’s Kind of Funny)
The myth probably started because we’re used to boiling water to kill bacteria or remove chlorine. That works! Chlorine is a gas, so it does evaporate when you boil water—just like when you leave a glass of tap water out and it smells less like a swimming pool. It’s easy to assume all “chemicals” act the same.
But fluoride is a solid mineral, not a gas. Boiling is like trying to kick a boulder out of your driveway by blowing on it. It’s not happening. A study from the University of Florida (yes, they actually studied this) found that even prolonged boiling only removes about 1% of fluoride. That’s like saying you “cleaned” your room by moving one sock under the bed.
Fluoride in water prevents some cavities but concern about health risks
So, if you’re trying to avoid fluoride—say, for a specific health reason—boiling is about as useful as using a garden hose to put out a campfire. You’re just making steam and wasting your gas bill.
