Motorists are advised to use cucumbers, a natural moisture repellent, to defrost car windscreens during winter. Available for as little as 80p, cucumbers contain natural oils that create a hydrophobic surface on glass, preventing frost and condensation. Experts from ALA Insurance suggest a simple process: start with the car's defrost setting to dry the windshield, use air conditioning to remove internal moisture, avoid recirculation, and clean the windshield with a microfiber cloth. Finally, wiping a cucumber over the windshield creates a protective film that helps prevent fogging, offering an efficient and affordable solution for frosty mornings.