How does a fridge keep food from going mouldy?

Answer:
Bacteria and fungi don't like living at such cold temperatures, just like us.
By keeping food at <4 degrees, the survival of these species is significantly inhibited, so they don't grow and reproduce as quickly as they would in normal conditions.
First answer by ID1949333814. Last edit by Chuz. Contributor trust: 3 [recommend contributor recommended]. Question popularity: 7 [recommend question].