“I’d heard lemon juice also works but I’m usually out of lemons, plus isn’t the cheapest way to prevent apples going brown."
The trick is to cut the apple up into sections, keeping the core. Next, place the fruit back together like a puzzle and hold it in place with a rubber band.
"We do this for pears too, as the only thing worse than a brown apple is a brown pear," she said.
"It works perfectly, the fruit’s own acids keep it fresh — you don’t even need any cling wrap or foil, just straight into a snack pot.
"Now all that comes home is the rubber band and the core for the compost."
Other mums have also taken to Instagram to share the same tip, claiming it really works.
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