What happens when food materials containing fats and oils are left

What happens when food materials containing fats and oils are left for a long time ? List two observable changes and suggest a way by which this phenomenon can be prevented. 

Answer

  • The food will get rancid / oxidised
  • Smell and taste changes
  • Antioxidants can be added / airtight containers / flush with use of nitrogen
Exam Year: 2020 Compartment