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It can be frustrating to buy a bag of potatoes, only to find they've gone soft shortly afterwards. Fortunately, food waste experts have offered advice on how to reduce food waste, including storing spuds away from one common kitchen item to stop them from going off.

Aldi, the UK's fourth-largest supermarket, has collaborated with Kate Hall, a food waste expert and founder of The Full Freezer, to share food storage tips. It comes after research revealed the average Brits throws away around £387 worth of food every year, with 70% of people admitting to buying food when they know it will inveitably end up in the bin. The data also shows that roughly 4.4 million potatoes are wasted every day in the UK.

The food waste expert advises storing potatoes in a cool dark space. However, she urges people to make sure they are away from onions as they encourage spuds to sprout faster.

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This is because onions are heavy producers of ethylene while potatoes are incredibly sensitive to the invisible gas. Meanwhile, the moisture released from potatoes can make onions go mouldy too.

Kate also recommends freezing potatoes if you know you're not going to eat them all. Then, when you want them, you can just reheat them straight from frozen until they're hot.

The food waste expert said: "Using your freezer is such a simple way to press pause on your food so it doesn't end up in the bin.

"Freezing food can help our budgets stretch further, and you can actually freeze a lot more than people realise. The trick is knowing the best way to freeze food and what to do with it after freezing."

Luke Emery, national sustainability director at Aldi UK, added: "At Aldi, we're committed to reducing food waste wherever we can across our supply chain, whether that be working with suppliers to cut down on waste, or marking down prices of items nearing their sell by date.

"Now we're on a mission to help shoppers minimise their food waste too, while getting even more value from their Aldi groceries at the same time. It seems simple, but the research shows that freezing items still isn't something many do - so we want to showcase just how easy that can be."