Removing Mineral Deposits from Kitchen Faucets and Fixtures

Mineral deposits are the white, chalky, or rust-colored crusts that accumulate on faucet aerators, spouts, and chrome fixtures in hard-water areas. They're calcium and magnesium buildup—harmless but unsightly—and they can restrict water flow if left unchecked. The good news is they respond well to acid, and you likely have what you need in your pantry already. A clean faucet takes minutes and costs almost nothing, and catching deposits early means you'll never need to scrub for an hour.

1. Unscrew the aerator first. Unscrew the aerator by hand by twisting counterclockwise. If it won't budge, wrap the base in a cloth and use an adjustable wrench or pliers to grip it without damaging the chrome. Once off, inspect the screen inside—mineral deposits will be visible as white or tan buildup on the mesh.
2. Let acid do the work. Fill a small glass or mug with white vinegar and submerge the aerator completely. Let it sit for 30 to 60 minutes. For heavy deposits, leave it overnight. The acetic acid will soften and dissolve the mineral buildup without requiring elbow grease.
3. Brush away loosened minerals. Remove the aerator from the vinegar and use an old toothbrush to scrub the screen mesh and exterior surfaces. Work the brush against the grain of the mesh to dislodge loosened deposits. Pay special attention to the aerator's underside where deposits hide. Rinse under running water to wash away debris.
4. Wrap the spout in vinegar. For mineral stains on the spout itself, soak a cloth or paper towel in white vinegar and wrap it around the affected area. Secure it with a rubber band and leave it for 30 minutes. This works especially well for the underside of the spout where deposits accumulate in hard-to-reach spots. Unwrap, scrub with the toothbrush, and rinse.
5. Attack the trim and crevices. Dip the toothbrush directly into vinegar and scrub the handle, base collar, and any decorative chrome trim around the faucet. Work into crevices and under the handle where deposits accumulate. Wipe clean with a damp cloth, then dry with a soft towel to prevent new water spots from forming.
6. Screw it back in tight. Hold the aerator up to light to confirm the mesh is clear and unobstructed. Screw it back onto the faucet tip by hand, turning clockwise. Tighten firmly but gently—you don't need a tool. Turn on the water and observe the flow; it should be consistent and not spraying unevenly.
7. Poke holes clear gently. If water pressure is low or sprays incorrectly even after cleaning the aerator, mineral buildup may be inside the faucet. Soak the removed aerator again in vinegar for another 60 minutes, then use a straightened paperclip or thin wire to carefully poke through the aerator's outlet holes to clear any internal blockages. Do this gently to avoid damaging the mesh.
8. Seal the shine with vinegar. After everything is clean and dry, wipe the faucet down once more with a soft, lint-free cloth slightly dampened with equal parts vinegar and water. This leaves behind a thin protective layer that slows future mineral accumulation. Buff dry immediately with a second clean cloth.
9. Stay ahead with routine. Clean your faucet aerator every three to four weeks in hard-water areas, or every two to three months in soft-water areas. A quick five-minute soak and scrub prevents heavy buildup from ever forming. Keep a small bottle of white vinegar under the sink specifically for this task.