Overview
- A sealed ziplock bag filled with warm tap water can be glided over the windscreen to melt ice quickly, but the water must not be hot or boiling.
- Homemade de-icer made from equal parts rubbing alcohol and water works within minutes and can be sprayed the night before to help prevent frost.
- Lotus Car Rental promotes prevention tips such as wiping the screen with cut onion or potato, and some reports highlight vinegar-and-water sprays.
- Experts caution that very hot water can crack or weaken glass due to rapid temperature shifts, with warnings repeated by consumer and breakdown services.
- Authorities and safety advisers remind drivers that setting off with frosted or unclear windows risks fines and impaired visibility during the cold spell.