Waking up to wet, misty windows is a common and frustrating winter problem for many households across the UK. This condensation occurs when warm, humid air from inside your home meets the cold surface of the glass.
The Simple 65p Solution
One journalist, Sophie Law, decided to tackle her persistent bedroom window condensation with a traditional and incredibly cheap method. She purchased a box of table salt for just 65p from Sainsbury's, filled a small bowl, and placed it on her windowsill before going to bed.
The principle is straightforward: salt is hygroscopic, meaning it naturally draws moisture from the air. By acting as a simple dehumidifier, it absorbs excess humidity before it can settle on the cold glass.
Surprising Overnight Results
The next morning, the results were immediately clear. Very little condensation had formed on the windows, and the salt in the bowl was damp to the touch, proving it had been actively pulling moisture from the air overnight.
Since her initial test, Sophie has continued using the bowl every night, noting a significant reduction in morning condensation. She replaces the salt every few days, or when it becomes visibly damp or starts to clump together.
How to Use Salt to Fight Condensation
This method is simple for anyone to try. You can use any kind of salt, but finer table salt is recommended for better absorption. Fill a small bowl or dish and place it on windowsills in rooms prone to moisture, such as bedrooms, bathrooms, and kitchens.
While this hack won't eliminate condensation entirely, it is a proven, low-cost way to noticeably reduce moisture build-up. This helps keep windows clearer and drier, and in the long run, can help prevent issues like mould growth and damage to window frames.
