Question

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Describe the following Methods of food preservation :-

¶ Boiling .
¶ Refrigeration .
¶ Drying & dehydration .
¶ Preservatives .
&
¶ Canning .


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Answer 1

Explanation:

1.Boiling is the process of applying heat to water until the temperature reaches about 100°C. Boiling foods in water cannot completely destroy all microorganisms, but the vegetative cells of bacteria, yeasts and moulds are generally quickly destroyed at temperatures of 100°C or above.

2.Refrigeration is the process of cooling a space, substance, or system to lower and/or maintain its temperature below the ambient one. In other words, refrigeration means artificial cooling. Heat is removed from a low-temperature reservoir and transferred to a high-temperature reservoir. Wikipedia