Question 1 What is meant by food preservation?
Question 2 Name methods of preserving food?
Preservation of Food
The food material like milk, fruits, vegetables, meat, fish and cooked food get spoiled easily. This is because they contain a lot of water due to which the food-spoiling micro-organism can grow in them easily.
The process in which the food materials are given a suitable physical or chemical treatment to prevent their spoilage is called food preservation.
Methods of Preserving Food
(1) Sun-drying or dehydration
(2) Heating
(3) Cooling
(4) Deep freezing
(5) Addition of common salt
(6) Addition of sugar
(7) Addition of mustard oil and vinegar
(8) Use of special chemical preservatives
(9) Pasteurisation
(10) Packing food in air-tight packets
What are preservatives
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