What are the 5 methods of food preservation

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what are the 5 methods of food preservation

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Science For Class 3 : Food and Preservation - Science Videos For Kids - Science Projects

5 Methods of Home Food Preservation

Food preservation , any of a number of methods by which food is kept from spoilage after harvest or slaughter. 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.

Although these old-fashioned ways to preserve food took time, energy and effort, their preserved food was free of harmful chemicals and preservatives. By now you probably have read that my mother was a high school home economics teacher for nearly 23 years.
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Canning and Preserving For Dummies, 2nd Edition

Learn Science: Need and Benefits of food Preservation

By Amelia Jeanroy, Karen Ward. You can preserve foods inexpensively by using canning, freezing, or drying techniques. Modern-day food preservation methods, such as water-bath canning, help you can and preserve with ease. Proper canning techniques stop this spoilage by heating the food for a specific period of time and killing these unwanted microorganisms. During the canning process, air is driven from the jar and a vacuum is formed as the jar cools and seals.

The following five methods of home food preservation will enable you to not only be frugal obtaining and preserving bulk foods on sale but will help you build a food storage inventory along with your dry goods and other foods. The heating and subsequent cool-down forms a vacuum seal against the lid which prevents other microorganisms from contaminating the food within the jar or can. Most popular pressure canner: Presto Quart Pressure Canner. Freezing reduces the temperature of the food so that microorganisms cannot grow. Enzyme activity is slowed down but not completely stopped during freezing.

It adds variety to meals, and the flavor of home preserved foods can knock the socks off of most commercial offerings. This post will give you an overview of different home food preservation methods, so you can decide which options work best for you. Some home food preservation methods are old, like cool storage, while others are new, like freeze drying. Many once common preservation techniques are no longer recommended due to food safety concerns. I use a mix of food preserving options.

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