The Surprising Reason Drivers Are Keeping Salt in a Glass Inside Their Cars

Say Goodbye to Foggy Windows and Musty Smells—With a Simple Cup of Salt

Are you constantly battling foggy windows, damp seats, or that stubborn musty odor in your car? You might be surprised to learn that the solution is hiding in your kitchen cabinet: salt.

That’s right—salt is much more than a seasoning. It’s a natural, inexpensive moisture absorber that can dramatically improve the air quality and comfort inside your vehicle.

🧂 Why Salt Works: The Science Behind It

Salt is hygroscopic, meaning it attracts and holds water molecules from the surrounding environment. When placed in an enclosed space like your car, salt draws moisture out of the air, helping to control humidity levels naturally.

By reducing excess moisture, you prevent:

Condensation on your windows, especially during colder months
Moisture buildup in the upholstery, floor mats, and trunk
The growth of mold, mildew, and bacteria, which thrive in damp environments