The 20p hack chefs swear by to keep your open jars from going mouldy – and it’s already in your cupboard

THERE’S nothing quite as annoying as going to use a jar of something in your fridge only to discover it’s gone mouldy.

But did you know there’s a really simple way to keep your open jars fresh for loads longer? And the answer is already in your cupboards.

According to Christina Soteriou, who is a chef and recipe writer, you don’t have to chuck your pest...