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Keeping hot food in the fridge uses more power

In the fridge and behind closed doors, there is a constant battle of kW trying to maintain the temperature that we require (in general, 4° C in the cold section and -18° C in the freezer).

Every time that you put hot or slightly lukewarm food on the shelves, the compressor has to work double or triple to maintain the internal temperature, thus increasing energy usage. Patience. Wait until the lunch box is at room temperature before storing it in the fridge. This will help you save €0.10 every time that you do this. Philippa Hudson, a food safety expert at Bournemouth University, supports this theory.

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