As winter tightens its grip and temperatures plummet, millions of drivers face the same frustrating morning ritual: battling a fogged-up windscreen. But according to the AA, most motorists are making a critical mistake that's keeping them shivering in their driveways longer than necessary.
The Great Demisting Debate Solved
In a revelation that's set to transform winter mornings, the Automobile Association has confirmed that cold air is not the solution for quickly clearing a misty windscreen. Contrary to popular belief, blasting your car's AC with cold air actually prolongs the demisting process when you need to get moving quickly.
Why Hot Air Works Wonders
The science behind effective demisting is simpler than you might think. "The quickest way to clear the inside of a wet or misty screen is with warm air," explains an AA spokesperson. "Hot air can absorb more moisture than cold air, so it clears the screen faster."
Here's the professional technique recommended by driving experts:
- Turn your heating to maximum warmth
- Direct airflow toward the windscreen
- Activate your air conditioning to help dry the air
- Open your windows slightly to allow moisture to escape
Prevention Beats Cure Every Time
While knowing how to clear your screen quickly is valuable, preventing fogging altogether is even smarter. The AA recommends these proactive measures:
- Keep your windows clean: Dirt and smears attract condensation
- Use a dehumidifier: Simple silica gel bags can work wonders overnight
- Check your cabin filter: A clogged filter reduces airflow efficiency
- Remove wet items: Damp coats, umbrellas and mats contribute to interior moisture
The Icy Windscreen Warning
Before you even think about demisting, the AA issues a crucial safety reminder: never pour boiling water on a frozen windscreen. The extreme temperature change can cause glass to crack or shatter, leaving you with an expensive repair bill and an undriveable vehicle.
Instead, use a proper ice scraper and de-icer spray. Allow your car's heating system to gradually warm the glass while you clear other windows.
Drive Safe This Winter
With proper demisting techniques and a few minutes of preparation, you can ensure clear visibility and safer journeys during the coldest months. Remember that taking shortcuts with visibility isn't just illegal—it's potentially deadly for you and other road users.
The AA's final advice? "Always allow extra time in winter conditions, and never set off until you have complete all-round visibility."
