Question

Write about food preservation methods?

Answer 1

Some methods are : 1. Drying 2.Salting 3. Canning 4. Freezing 5. Pickling

Answer 2

$\mathtt{\bf{\large{\underline {\red{Food\: preservation \: methods :-}}}}}$

• Foods should be preserved because several microorganisms cause diseases in plants like, rice, wheat, potato, apple and others.

• Those diseases can reduce the yield of crops.

• They can be controlled by using different chemicals to kill the microbes.

• Microorganisms spoil our food, and spoil food emits bad taste and cause harmful diseases.

• Food can be preserved in the following ways :-

➽ Chemical methods :-

Salts, oils, sodium benzoate are some common chemicals used in preservation of meat, jams, squashes, to check their spoilage.

➽ Preservation by sugar :-

Sugar is used to preserve jellies, jams and squashes, it reduces the moisture and stop the growth of microbes.

➽ Preservation by oil and vinegar :-

These are used in vegetables, fishes, meats and fruits to preserve.

➽ Storage and packing :-

Dry fruits and vegetables are preserved by packing and storing in sealed air tight packets.

➽ Heat and cold temperature :-

Milk and water are boiled to kill microbes in it. Foods are kept in fridges to reduce the growth of microbes.