We all have refrigerators in our kitchens. They maintain food at low temperatures, which, in most instances, helps it remain fresh longer than leaving it out on the worktop. Everything from fruit and vegetables to milk and yesterday evening's dinner leftovers can be stored in the fridge, and it's one of the gadgets we depend on most.

However, did you realise you might be operating your fridge completely incorrectly? According to a specialist on TikTok , most of us overlook one crucial component of the appliance that is essential for proper operation. This results in food going off more quickly than it should and potentially harming how the fridge functions.

Every fridge contains a small dial inside with numbered segments, typically from one to five. But are you aware of what that d

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