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More progressive variant of food storage is to create vacuum in ware by means of the special pump (usually it is applied on the container). The electric pump working from a network or the accumulator is much more effective: in containers with manual vacuum not always it is possible to provide sufficient air. The price for such containers begins from 30 dollars of the product from heat resisting glass in which it is possible not only to freeze products, but also to warm up in a microwave, cost more expensive. But that the ware has not burst before to place from a refrigerator in a microwave, it is better for heating up to a room temperature.
The special lattice is often applied on containers also. It is put on a bottom of ware and serves to separate a product, for example fresh meat, from a liquid which of it is allocated. That the owner has not forgotten, how many days at it is stored meat or sausage cutting, on covers of expensive containers there is a special indicator of date and month.
But even in such vacuum containers the meal cannot remain eternally. According to the expert of laboratory of food toxicology of scientific research institute of a food that a foodstuff has not done much harm to health to store them even in the most technological container it is necessary not longer the term specified on packing. Products which should be processed – to cook, fry, soar, – it is not necessary to put in a refrigerator nearby or on a shelf above products which do not require thermal processing, for example sausage or cottage cheese.
On the sanitary rules confirmed for public catering establishments by which it is necessary to be guided and in a life, meat half-finished products are stored in conditions of a refrigerator no more than for few days, sausage boiled: the higher and first grade there are more 72 hours, and the second grade – 48 hours. (soups, snacks) it is not necessary to hold multicomponent products in a refrigerator of more than 24 hours. Term of a life of salads and that is less: without refueling – 18 hours, with refueling (mayonnaise, sauces) – six hours.
And products are desirable for storing on a trellised shelf that air arrived freely. If sausage promptly becomes covered by slippery whitish touch, means, in a refrigerator is too damp. To reduce humidity it is necessary to cover “wet” products with covers, and greens to pack into tight plastic containers.
It is the most popular kind of “refrigerating” packing of food. Containers of the every possible sizes and forms from the plastic calculated on different kinds of products – cold, hot, loose now are issued. Such ware is multipurpose: it is possible and to store in it simply products on a refrigerator regiment, and to freeze them in a freezer, and even to prepare in a microwave. But this variety can play with the buyer a malicious joke. Therefore to choose containers it is necessary very carefully.
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Tags: emergence preparedness, food storage
Posted in Food Plants · May 25th, 2010 · Comments (0)
Some great tips about food storage
Let’s begin with what not any plastic is suitable for food, and furthermore for hot products. On the containers contacting to food, there should be special marks – a badge with the glass and plug image. If this badge will cross out, using storage of food a product it is impossible.
Various kinds of plastic under certain conditions get toxicity. Some containers, absolutely safe at a room temperature, become a mine of the slowed down action at considerable heating. So, plastic polystyrene does not react in any way to cold products. But it is necessary to pour in capacity something hot (from 70 °), harmless by sight the vessel starts to allocate toxic connection under the name “styrene”. At the regular use it collects in liver, kidneys and promotes, for example, to cirrhosis development.
Therefore for the consumer it is very important to know, the container is intended for what kind of products. Be attentive: containers and banks supply with inscriptions «for cold foodstuff» or «for hot foodstuff». According to the experts in food storage, «if on the container it is written« for hot foodstuff », this ware can be used both for hot, and for cold dishes».
At absence of an inscription it is necessary to consider pictogrammes – if the container suits both for hot, and for cold, on it the range of temperatures – for example will be specified,-40 +130 ° «four snowflakes» means that in the container it is possible to freeze products.
From the point of view of toxicity it is considered the most safe polymer polypropylene. Substances which can be allocated from polypropylene, are almost harmless. So for foodstuff it is better to choose the containers made of this polymer, on them necessarily there is abbreviation PP. Experts assert that this plastic maintains temperatures to +150 ° with and approaches for dishwashers, refrigerators and microwaves.
Vacuum:
For those who buys products of times in a week and thus wants, that they long remained fresh, special containers with system of vacuum storage are issued and on sale. It is possible to store half-finished products and already ready dishes in them. In vacuum packing products are protected from negative influence of oxygen and long remain same fresh, as at the moment of their purchase or preparation.
Such containers do of special heat resisting glass or aforementioned polypropylene. The main thing in these capacities is a tight cover. It has the special valve through which of densely closed capacity air leaves.
The simplest way of removal of air is mechanical, by simple pressing a container cover. But, of course, real “vacuum” thus can’t be received. As a rule, containers do of polypropylene.
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Tags: emergence preparedness, food storage
Posted in Food Plants · May 25th, 2010 · Comments (0)