Question

What do you understand by the term food preservation? Discuss Any five methods commonly used for preserving food.

Answer 1

Food preservation is the way of storing food so that it does'nt get into affect or get spoilt by any harmful microorganisms.

Some of the ways of preserving food are :

1.Chemical method (sodium benzoate and sodium metabisulphite are used )

2.Preservation by common salt

3. Preservation by sugar

4. Preservation by oil and vinegar

5. Heat and cold treatments (by pasteurisation)

6. Storage and packing (by canning, etc. )

Answer 2

it means preserving food so its not spoiled.
canning
freezing
adding preservatives
dehydrating
salting