Science, asked by Rakhibaranwal, 1 year ago

describe the principle on which the following method of food preservation are based - boiling, canning, freezing and dehydration

Answers

Answered by rishiroy45
88
boiling - by boiling water or other food items we can kill the bacteria in them because they cannot live under unfavorable condition like high temperature while boiling. freezing - by freezing any food items wen can prevent them from bacteria. this happens due to high temperature. dehydration - it means loss of water . bacteria cannot live without water. so, it prevents from bacteria
Answered by Rockstar9086
0

Answer:

boiling: boiling increases the temperature of food in such extent that all microorganisms die

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