Why Does Car Glass Always Frost Up?

[Kaden]

The reason car glass always frosts up: After people leave the car at night, residual heat remains inside the vehicle, causing the temperature of the car glass to be higher than the outside. If the external temperature is too low or it snows, the snowflakes landing on the glass will melt first. As the snowflakes melt, the interior temperature gradually drops to match the outside temperature, causing the melted snow water on the glass to freeze. Methods to clean frost on car glass: 1. When parking after using the car, don't lock the car and leave immediately. Wait patiently for a while, open both doors for ventilation, and when the interior temperature drops to near the outside temperature, turn on the power and use the wipers to clear any remaining snow water from the windshield before leaving. 2. Frost on the rear window is easier to handle, as most cars are equipped with a rear window grid-style defroster. The defroster consumes battery power when in use, so always start the engine first, then press the rear window defogger switch. The defroster will automatically turn off after 10 minutes.