Question

Spoilage and wastage of food and food preservation details​

Answer 1

Some methods of preservation are:

Freezing. Food kept in a refrigerator remains fresh for some days.

Boiling. By this method, we can preserve food for a short period of time.

Salting. We can add salt to preserve pickles and fish.

Sweetening. Excess sugar in food also acts as a preservative.

Dehydration.

Canning.