how can we preserve food?
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2
Answer:
I answer this question
Explanation:
Among the oldest methods of preservation are drying, refrigeration, and fermentation. Modern methods include canning, pasteurization, freezing, irradiation, and the addition of chemicals. Advances in packaging materials have played an important role in modern food preservation.
Answered by
1
Explanation:
1.Absense of oxygen ( air tight containers)
2.Refrigeration
3.Nitrofication
4.Away from sunlight
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