The Surprising Reason Drivers Are Keeping Salt in a Glass Inside Their Cars | July 27, 2025

If you’re tired of dealing with foggy windows or that stale, musty odor in your car, the answer might be sitting right in your kitchen: salt.

More than just a seasoning, salt is a natural moisture absorber. By placing a cup of it in your vehicle, you can easily reduce humidity and condensation, making every drive more comfortable.

Salt is hygroscopic, which means it draws moisture from the air.

This simple property makes it an excellent solution for managing excess dampness inside your car.

With lower humidity levels, you’ll experience fewer fogged-up windows and prevent moisture from soaking into your upholstery—an easy, low-cost fix for a widespread issue.

What makes salt especially effective is that it tackles the root of the problem.
While air fresheners only mask unpleasant smells, salt helps eliminate them by removing the moisture where mold and bacteria grow.
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