How do you get road-salt stains out of carpet after a Minnesota winter?

Vacuum up the dry salt, then blot the white residue with a solution of warm water and white vinegar. Rinse by blotting with plain water, blot the area dry, and let it finish drying with airflow. Always test the mixture on a hidden spot first, because some carpet fibers react badly to vinegar.

Step by step

Let the area dry completely, then vacuum up all the loose salt and grit.
Mix about one part white vinegar with two parts warm water. If the carpet feels oily or tacky, which can happen with calcium-chloride de-icers, add a drop of clear dish soap.
Test the mixture on a hidden area, such as inside a closet, and wait for it to dry to check for color change.
Dab the stain with a clean white cloth dipped in the mixture, then blot. Never rub or scrub, because that frays the fibers and pushes salt deeper.
Rinse by blotting with a cloth dampened with plain water to lift out the vinegar and dissolved salt.
Blot dry with a clean towel and point a fan at the spot to speed up drying.
Vacuum once the carpet is fully dry. If the white mark returns, repeat the process.

To keep salt from building up next winter, use entry mats inside and outside, take boots off at the door, and vacuum entry areas often during the winter months.

Check the carpet maker's care label before you start. Wool and natural fibers can react to vinegar, and when in doubt it is best to ask a professional.

Common questions

Why does the white mark come back after it dries?

Salt dissolved into the carpet can wick up from the backing as the carpet dries and leave a fresh white ring on top. Rinse and blot the area again with plain water, then dry it thoroughly.

Is vinegar safe on all carpet?

Not always. Check the carpet maker's care label and test a hidden spot first. Wool and other natural fibers can react to vinegar, so use extra care or ask a professional.

What about the oily film from some ice melts?

Some de-icers leave a sticky film behind. Add a drop of clear dish soap to the warm-water mixture, then rinse thoroughly with plain water so no soap stays in the carpet.

When should I call a professional?

Consider calling one when stains keep returning, when the affected area is large, or when the carpet is made of delicate fibers.

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