As the winter months approach, experts are suggesting a simple yet effective trick to combat one of the season’s most common household issues: condensation. By placing a bowl of salt on your window sills, you can help prevent the build-up of moisture that often leads to mould, which poses health risks.

The team at Posh.co.uk explains that salt has the ability to absorb moisture from the air, making your home drier and reducing the likelihood of mould growth. Condensation occurs when warm indoor air meets the cold surface of a window, but with less moisture in the air thanks to the salt, there should be fewer droplets forming, reports the Mirror.

Andy Ellis, a home and garden expert at Posh.co.uk, warns about the dangers of constant condensation, stating: “A constant build up of condensation in the home isn’t great and in some cases, it can cause mould growth which can be dangerous for your family.”

He further adds, “Salt has the ability to naturally absorb moisture from the air and essentially dries it out so that when it does come in contact with the glass, there are less droplets of condensation that will form.”

He elaborated on the simple method, stating: “It’s a really easy trick that requires no effort at all. Simply fill a shallow bowl or a small jar with some salt – this can be table salt or rock salt.”

Color image of an old window with rotten wood and mold on it, inside an older home, during winter.
Mould can be dangerous (Image: Shared Content Unit)

“The amount you use will vary depending on the size of the window you’re placing it next to. Of course, generally speaking, the larger the window the more salt you’ll need, though usually one small bowl should be fine.”

“The same bowl of salt should last you a couple of days. You’ll know when it’s time to replace it because the salt will appear damp and will begin to clump together.”