Modern methods of food processing, preservation and storage
Refrigeration : Refrigeration this method slows the processes of spoilage, but is less effective for foods with high water content. This process cannot kill micro-organisms, nor stop their growth completely, and a failure to realize its limitations causes many cases of food poisoning.
Pasteurization: Pasteurization, a method of heat treatment, is used mainly for milk. By holding the milk at 72°C/162°F for 15 seconds, then cooling it rapidly to 10°C/50°F, all disease-causing bacteria (pathogens) can be destroyed. Less harmful bacteria survive, so the milk will still go sour within a few days.
Dehydration
Dehydration is the process of removing water or moisture from a food product. Food dehydration is safe because water is removed from the food.
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