Question

how does the food spoilage occur?

Answer 1

the food spoilage occurs basically because the oil and the fats in the food gets oxidized

which paves the way for microbial growth

spoilage can be prevented by cutting the supply of air to the food supply

Answer 2

food spoilage takes place due to rancidity i.e. natural oxidative chemical degradation of oil.This results in the foul taste & smell of food,the food becomes unfit for consumption.