My grandma swears by this trick to stop icy condensation on windows and it takes just 4 mins. Here’s how it works

Here’s how you can replicate my grandma’s method in just four minutes:

1. Start with clean windows. If they’re dirty, wipe them down with a damp cloth and let them dry completely.

2. Shake the can of shaving cream well and apply a small amount (about the size of a golf ball) onto your hand or directly onto the window.

3. Spread the shaving cream evenly across the entire window pane using your hand or a cloth.

4. Allow it to sit for about a minute, then buff it off with a clean, dry cloth until the glass is clear and streak-free.

The result should be a clear window with an invisible layer of protection against condensation.

The key ingredient in shaving cream that makes this trick effective is stearic acid. Stearic acid is a type of saturated fatty acid that acts as a surfactant—a substance that reduces surface tension. When applied to a window, it creates a thin, invisible film that repels water.