Fluoride is a mineral ion, not a bacteria or volatile chemical. Boiling kills germs and evaporates chlorine, but fluoride stays put because it has a high boiling point—over 1,600°C. Your kettle won’t get there.
How to Remove Fluoride from Water: 4 Effective Methods
Some home hacks suggest adding calcium (like crushed eggshells or milk) during boiling to bind with fluoride, forming calcium fluoride that can be filtered later. This is technically possible, but the chemistry is finicky and you’d need precise ratios. Plus, you’d be drinking chalky, egg-shell-flavored water. Not exactly a lifestyle upgrade.
Fun fact: the same principle applies to making tea—black tea naturally contains fluoride, so boiling it doesn’t remove that either. You’re just steeping in the original dose.