Question

State whether the following statements are true or false.
Statement I: Removing air prior to packing food decreases shelf life.
Statement II: In pasteurisation, milk is first heated to 70℃ and then chilled and stored.

• A. Statement I: True
  Statement II: False
• B. Statement I: False
  Statement II: True
• C. Statement I: True
  Statement II: True
• D. Statement I: False
  Statement II: False

Answer 1

The correct option is B Statement I: False

Statement II: True
Vaccum packing

• It is a method of preserving food from spoilage.
• In vacuum packing, the air is removed prior to packing which helps in limiting the growth of microbes on the food.
• Thereby, increasing the shelf life of the food.

Pasteurisation

• It is the process of sterilisation of milk in which the milk is heated at high temperature, around 70℃ for 15 to 30 seconds and then it is suddenly chilled at 5℃ and stored.
• This sudden change in the temperature kills the microbes and hence, increase the shelf life.