what are the different methods of food preservaction
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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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By salt, oil, sugar, chemicals like sulphur dioxide, sodium nitrite, sodium benzoate, freezing, using of alcohol, fermentation and pasterisation
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