Explain different methods of food preservation.
Answers
Food preservation, any of a number of methods by which food is kept from spoilage after harvest or slaughter. ... Among the oldest methods of preservation are drying, refrigeration, and fermentation. Modern methods include canning, pasteurization, freezing, irradiation, and the addition of chemicals.
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METHODS
▶By Sun Drying
Drying in the sun reduces the moisture content of food materials.
▶By Heating
Heating kills germs and prevents from spoilage.
▶By Smoking
Smoking is used for dehydrating food items like meat, fish, etc.
▶By Refrigeration and Freezing
Cooling by refrigeration and freezing stops microorganisms from growing and multiplying.
▶By Oil, Vinegar and Spices
These preservatives do not allow the growth of microorganisms and thus help in preserving the food items.
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