Why Drivers Are Storing Salt in Glass Jars Inside Their Cars—And How This Simple Hack Can Make Winter Driving Easier

Add Essential Oils:
Mix in lavender, peppermint, or citrus oils to turn the moisture absorber into a natural car freshener.

Use Baking Soda Instead of Salt:
Baking soda absorbs odors and moisture, making it a good alternative for keeping the interior dry and fresh.

Use Epsom Salt:
Absorbs moisture effectively and adds a crisp mineral scent.

Create Two-Layer Jars:
Add a few tablespoons of uncooked rice on top of the salt to boost moisture absorption.

FAQ

Q: Does salt really help prevent foggy windows?
Yes. Salt draws in moisture from the air, reducing condensation that causes fogged or frosted windows inside your car.

Q: Can I use a plastic container instead of a glass jar?
You can—but glass is safer because it’s heavier, stays put more easily, and doesn’t absorb odors.

Q: How long does the salt last?
Usually 4–8 weeks, depending on humidity levels. Replace it when it clumps heavily.

Q: Is this safe to leave in the car all year?
Yes, though it’s most helpful in winter. In summer, it can still reduce humidity and odors.

Q: Can this replace defrosting or climate controls?
No. It’s a helpful supplement, not a replacement. You should still use your defroster as needed.