Question

Make a note of what methods have been used to store foods for a long time
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Answer 1

Answer:

preservatives are used to store food for long time. example - oil ,salt,sugar are used as preservatives in pickles

Answer 2

Answer:

Such practices date to prehistoric times. 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.

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.

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