AA settles debate on whether hot or cold air is best for defogging car windscreen

The AA has shared exactly how to defog your windscreen before driving off - and what to do if it starts to mist up when you're on the road after motorists shared their confusion

It doesn't matter how many years you've been driving, you always start to panic at the wheel when your windscreen fogs up. While some crank up the heating and hope for the best, others simply wipe the mist away with a sponge kept in their car door.

But to help keep Brits safe on the road this winter, the AA has explained exactly what you need to clear your foggy windscreen. It comes after a Reddit user asked: "Is there a standard way to defog car windows? I have been driving for almost a year now and I have no idea how to properly defog my windows.

"I’ve only had to defog my windows probably less than five times so far so I never worry about it. Tonight I was driving and no matter what I did it never cleared up. I just used my wipers constantly to see better.

"In a cold morning (where there is a lot of condensation) I just used a rag to wipe off the condensation, is that a proper thing to do?

"I have looked on YouTube and many videos said different things so is there a way to properly do it or does it depend on the car? I also have no person to ask at home and I don’t have friends to ask."

According to the AA, the best way to defog windows is to use a combination of hot and cold air.

A statement reads: "You should turn on your warm air blower and rear windscreen heater as well as your air-con. If possible, allow some outside air to come into the car as well. This should help you quickly turn a frosted over car back into something more drivable."

To stop the frost from ever becoming an issue, the AA suggests keeping your car in the garage or shielding your windscreen with a piece of cardboard when parking it outside.

AA's advice continues: "If you're hurrying to get to work or do the school run, it can be tempting to drive off as soon as the ice has cleared a little.

"But this could dangerously obstruct your view of the road if there's still ice or mist on your windscreen. In fact, you can get a £100 fine and 3 points on your licence if you drive with obscured vision."