Can some body tell me about vaccum packing ?

Question

I want to know more about vaccum packing .Please tell me how it is being packed ?

Answer 1

Why vacuum packaging?

Foods maintain their freshness and flavor 3-5 times longer than with conventional storage methods, because they don't come in contact with oxygen.

Foods maintain their texture and appearance, because microorganisms such as bacteria mold and yeast cannot grow in a vacuum.

Freezer burn is eliminated, because foods no longer become dehydrated from contact with cold, dry air.

Answer 2

great answers above,,just to add that, vaccum packing is also used in engineering industry, electronics etc also, where a suitable shape of thick polythene bag is filled with the goods and sealed on the four sides,and then a corner is cut to accomodate the suction pipe of a vaccum pump which sucks out all the air in the bag, then the corner is sealed before the vaccum pump is stopped. this is done to prevent rusting of precision metal parts etc.

Answer 3

Vacuum packing is a method of storing food and presenting it for sale. Appropriate types of food are stored in an airless environment, usually in an air-tight pack or bottle to prevent the growth of microorganisms . The vacuum environment removes atmospheric oxygen, protecting the food from spoiling by limiting the growth of aerobic bacteria or fungi, and preventing the evaporation of volatile components. Vacuum packing is commonly used for long-term storage of dry foods such as cereals, nuts, cured meats, cheese, smoked fish, and coffee, and also for shorter-term storage of fresh foods such as vegetables, meats, and liquids such as soups.

Hills Brothers Coffee once commanded the largest share of the American coffee market, is believed to have introduced the first commercially reliable vacuum sealing process.

Vacuum packing is also used to reduce greatly the bulk of non-food items. For example, clothing and bedding can be stored in bags evacuated with a domestic vacuum cleaner or a dedicated vacuum sealer. This technique is sometimes used to compact household waste, for example where a charge is made for each full bag collected.

Vacuum packaging products using plastic bags, canisters, bottles, or mason jars are available for home use.

Answer 4

checkout the link....... the first answer is ditto..