Write any five methods used for food preservation. Also write how it works and
some examples of food that can be preserved by each method.
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Answer:
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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Food preservation refers to the processes you use to prepare food for safe, long-term storage, whether you plan to use it at home, for prep in a commercial kitchen, or to sell directly to consumers. Preservation methods help inhibit bacterial growth and other types of spoilage, meaning the food is safe and satisfying to eat in the future.
There are three reasons why food preservation is important:
To minimise pathogenic bacteria – food in long-term storage is at serious risk of spoilage due to bacteria such as E. coli, Salmonella, and other pathogens. Bacteria only need warmth, moisture, and time to rapidly multiply in food, but food preservation inhibits one or more of these conditions and stops their growth
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Food Preservation Methods and Guidance
Liz Burton December 19, 2018
Clock Icon 9 min read
We’re spoiled for choice when it comes to food preservation. To extend the longevity of food used at home or in your food business, you can use refrigeration, freezing, canning, sugaring, salting, and even vacuum packing. Plus, food experts are constantly researching new preservation methods to expand our options.
methods of food preservation
Centuries of trial and error have taught us the safest methods of food preservation, which you must prioritise if you want to retain the quality and hygiene of stored food. The good news is that, with the right guidance and materials, you can easily do so in any setting.
The Importance of Food Preservation
Food preservation refers to the processes you use to prepare food for safe, long-term storage, whether you plan to use it at home, for prep in a commercial kitchen, or to sell directly to consumers. Preservation methods help inhibit bacterial growth and other types of spoilage, meaning the food is safe and satisfying to eat in the future.
There are three reasons why food preservation is important:
To minimise pathogenic bacteria – food in long-term storage is at serious risk of spoilage due to bacteria such as E. coli, Salmonella, and other pathogens. Bacteria only need warmth, moisture, and time to rapidly multiply in food, but food preservation inhibits one or more of these conditions and stops their growth. For more information, check out our Complete List of Food Borne Diseases.
To keep food at its best quality – food deteriorates over time due to spoilage. In many cases, mild spoilage doesn’t make food unsafe to eat, but it significantly affects its taste, texture, and appearance. Proper food preservation can help retain some of these qualities, as well as the nutritional value of certain foods.
To save money – waste is costly, both at home and in a commercial setting. Ideally, you should avoid buying more than you can use, but various preservation methods – if done safely – help you keep vegetables, fruits, meat, etc. well past their usual expiration so there’s no need to bin them.