Question

a) Methods of food preservation.​

Answer 1

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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.

There are several traditional methods of food preservation used at the household level that can be classed as chemical methods. Substances such a sugar, salt, vinegar, spices and wood-smoke are generally regarded as safe and natural preservatives. Salting, sugaring and smoking are all methods of curing foods.

Answer 2

Answer:

Common Methods of Food Preservation. Chilling. Freezing. Sugaring. Salting. Canning. Vacuum Packing.