Wait for food to cool on the counter top before transferring to the fridge to chill or freeze. Deep cleaning your fridge once a month is decent but often, give it a good wipe down, sort out food items that are spoilt and reorganize. When deep cleaning the fridge, take every item out (from the food stored, to the shelves) till it is empty then work your way back from there. The least cool part of the refrigerator is the shelf by the door, which is why it is best to store food that has natural preservatives like jam. Store food that does not need to be cooked at the upper level of the fridge.

Source: The Guardian January 13, 2018 04:30 UTC