Preservation of Food
Preservation of Food: Overview
This topic discusses the importance of the preservation of food. We will come across different methods to do the same. It helps us understand how food can be preserved by adding preservatives with the help of some activities.
Important Questions on Preservation of Food
Food preservatives extend the shelf life of certain food products.


List out the food items that you preserve at homes for long period.

What questions would you ask a farmer about how they can keep food grans safe from rats, mice and insects?

Fill in the blank using the words given below.
(winter, digestive, sea, preservation, spin)
The process of treating food such that the spoilage of the food is delayed is called _____ of food.

What's the solution?
Fruits like mangoes, amlas, guavas and vegetables like peas, onions, tomatoes, fenugreek, are needed all year round. They are available in plenty only in certain seasons.


Fill in the blank with a suitable word:
_____ (Food preservation/Food processing) is the process of storing food for a long time without getting spoilt.

Nuts and grapes are dried for preservation. This process is called pickling.

Preservation is the process of storing food for a long time without getting spoilt.

Removing the water from vegetables is called dehydration.


We should not keep extra food in a refrigerator.

Write the method of preservation of the below given food materials. You can add more examples, if you want.
Examples | Methods of preservation |
Potato chips | |
Mango pickle | By adding oil |
Cluster beans (guar phali) | |
Peas | |
Cereals |

Write the names of three things required for the preservation of food materials.

For how long, the food items generally found at home, can be preserved? What are the methods of their preservation? Write.

Which food item will not spoil even after days puri, pickle, marmalade or potato vegetable?

Why are preservatives added to preserve food?
[Clue: to stop fungal and bacterial growth]

Write how the following would be preserved by unscrambling the word. (YINGDR)
Potato chips to be used for 6 months:

Write how the following would be preserved by unscrambling the word. (YINGDR)
Peas to be used next year.
