Potatoes and onions are commonly stored together – but did you know that this can make them go off quicker? Both potatoes and onions produce a gas called ethylene, causing each other to spoil. To prevent this, instead of putting them next to each other, store them in two different brown paper bags in a cool, dark store cupboard.

Now discover the foods that should NEVER be kept in the refrigerator

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Last updated by Lottie Woodrow.

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