The simplest method? Boil the heck out of your water. When you heat hard water, calcium bicarbonate breaks down into calcium carbonate—that solid, white gunk you see floating around. Let the water cool, and the solids will settle at the bottom.
This is why your tea kettle looks like a crime scene after a week. Pour the water off the top, leaving the white sludge behind, and—voilà—softer water for your coffee. Fair warning: this only removes temporary hardness (carbonates), not the permanent kind (sulfates). So it’s a partial fix, but hey, it’s free.
Bonus Tip: The Ice Cube Trick
If you’re impatient like me, pour the boiled water into an ice cube tray. Once frozen, the calcium sediment will cling to the ice. Just rinse the cubes quickly before melting them. You’ll literally ditch the grit.
