This simple hack will keep apples fresh in your kids’ lunch boxes ALL day.

An Australian mom and organization guru has revealed her simple trick to keep cut apples from turning brown in her child’s lunch box.

Anita Birges, who heads Professional organization Mise en Placeshared the easy trick on an Instagram video to thousands of fans.

Sydney’s mom uses an apple slicer on the fruit and then holds the pieces together by tying a hair elastic over them.

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‘Don’t you hate it when you pack your kids’ lunch boxes with freshly cut apples and they return them to you at the end of the day?’ he asked the 64,300 followers of him.

Anita’s children say that apples turn ‘brown’ when lunch arrives, and they admitted to finding them ‘disgusting’.

“I started using this ‘apple trick’ about a year ago because it drove me crazy that the apples I was cutting for the kids didn’t get eaten during the day,” the mom said.

Apples, and some other fruits, turn brown once they have been cut due to a chemical reaction when exposed to oxygen.

Browning can also change the appearance, taste and texture of the fruit, and the phenomenon is estimated to be the cause of up to half of all household food waste worldwide.

But Anita’s trick prevents the apple from being exposed to too much oxygen.

All you have to do is cut the apple with a slicer and put it back together. Tie it off with a hair elastic or rubber band and voila,” she said triumphantly.

‘You can keep brown away, keep them fresh all day, keep debris at bay!’

Hundreds thanked Anita for her simple trick and shared their own stories of ‘picky eater’ kids.

“I tested it with a rubber band and the apple stayed cool, but my kids still didn’t eat it… because it smelled like rubber.”

“This is amazing, I’ll give it a try,” said another.