Question: what is the ideal temperature for a fridge in celsius?
Answer: They recommend you keep your fridge set to 4°C (40°F) or colder and your freezer at -18 °C (0 °F) or lower. At that temperature bacteria growth can be slowed down. Anything higher than that and you enter the 'danger zone' of 4 °C (40 °F) to 60 °C (140 °F) where bacteria has the opportunity to explode.