Put a Glass of Salt in Your Car: A Simple Humidity Hack

Introduction

Ever notice foggy windows, musty smells, or condensation inside your car, especially on rainy or cold days? It turns out, a simple kitchen staple—salt—can help. This trick is an easy, low-cost way to reduce humidity and keep your car fresh and clear.

Why It Works

Salt is hygroscopic, which means it naturally absorbs moisture from the air. By placing a glass or small container of salt in your car:

It pulls excess water vapor out of the air.

Reduces window fogging, especially on cold mornings.

Helps prevent mold and musty odors caused by trapped moisture.

This is the same principle behind using salt to keep shoes, closets, or storage boxes dry.

How to Do It