What is the retort case?

Retort case is a form of advanced food packaging that has in many cases replaced the need for preservation. The concept was invented by the Army of the United States in 1978 as a method of storage of allocation for troops, known as food, ready to eat (MRE), but since then it has been adapted to a wide range of consumer products, even including some pet refreshments. The retort case consists of multiple layers of plastic and aluminum or gold metal foil laminate. It is so resistant and resistant to piercing that he earned the name "flexible can". Some retort cases even have transparent windows so that the consumer can see the content before purchasing the product. Such a package is often confused with a vacuum cover that looks the same, but has some important differences. In the vacuum container there is food like salmon, usually warms and then wrapped where all air is removed from the package. This slows the growth of most bacteria that requires oxygen and destroys other bacteria in PROOSU heating. There are varieties of dangerous bacteria that may survive this process, such as Clostridium botulinum that cause botulism and can grow in the absence of air.

This limitation of the vacuum container causes vacuum meals to be required after opening. They also have a shorter durability in general than retort. When processing food of the outlet cases such as salmon, the pouch itself will withstand higher heating temperatures. It is processed under pressure at levels above 230 ° Fahrenheit (110 ° Celsius), in which all bacteria are destroyed. Therefore, food wrapped in a retart case may not be cooled before opening and can be stored in the same way as traditional canned goods.

One of the additions offered by the retort case is that the food is preparation is done by heating in the housing. Steam generated from water in the diet kills bacteria. In the VA processThe meal meal will not lose any nutrient value because it is completely separate.

Some of the designs of retorters also contain what is called a free ration (FRH), which is also an outer case. The water is added to FRH to create an exothermic reaction, and re -heat the food to 100 ° Fahrenheit (38 ° Celsius) in about ten minutes. FRH was introduced to MRE in 1992 for the US Army and can now be purchased by consumers for heating camp food.

pouch retort is an extremely strong and versatile method of safe food storage. It weighs less than traditional vacuum canned goods, does not require the use of precious metals in large quantities and is more portable. Its popularity in Asian countries has led to a wide range of Chinese dinners of various fish and vegetable dishes for storing.