Question

Which of the following method(s) help(s) in food preservation?

• A. Addition of salts or acids
• B. Addition of sugar
• C. Pasteurisation
• D. Storing in containers

Answer 1

Answer: (A), (B), (C)

The correct options are
A

Addition of salts or acids

B

Addition of sugar

C

Pasteurisation

The addition of salts or acids to pickles and sugars to jams and jellies reduces the moisture content of these types of food making an unsuitable condition for the growth of microorganisms. Pasteurization is the process of heating food such as milk to high temperature for a sufficient period of time and then cooling it suddenly to kill microorganisms that are pathogenic or cause spoilage of food. Storing in containers does not preserve food.