What is Food Preservation

It means preventing food from spoiling and getting rotten

How to Preserve Food by Different Methods?

It is done by adding preservatives like salt,sugar etc to food


Let’s see different methods

 

Preservation by Common Salt

Common salt is used on Meat and Fish to prevent growth of bacterias.

Common salt is also used to preserve fruits such as Raw Mangoes, Lemon and Amla.

 

Preservation by Sugar

It is used in case of jam,squash and jellies

Fruits that are preserved in the form of jam and jellies are Apple,Mango,Strawberry,Guava,Orange etc

Sugar reduces moisture,so bacteria cannot grow

 

Preservation by Oil and Vinegar

It  is used in case of pickles to preserve fruits such as Raw Mangoes, Lemon

It also prevent growth of bacteria

 

Heat  Treatment

Milk is boiled to kill microorganisms so that milk can last longer

 

Cold Treatment

Food is stored in refrigerator.This prevents growth of microorganisms as the cannot grow in cold temperature

 

Storing and Packing in Air Tight Containers

This is done in air tight containers.so Microorganisms cannot reach food through air

Different methods to preserve food.jpg

 

What are preservatives?

Substance which is used to preserve food(prevent food from getting spoiled) is called preservatives

Example Salt, Sugar, Oil, Vinegar

  1. Class 8
  2. Chapter 2 Class 8 - Microorganisms : Friend and Foe

About the Author

CA Maninder Singh's photo - Expert in Practical Accounts, Taxation and Efiling
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 9 years and a teacher from the past 16 years. He teaches Spoken English, Written English, Grammar and Vocabulary at Englishtan.