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Aluminium foil acts as a total barrier to light and oxygen (which cause fats to oxidise or become rancid), odours and flavours, moistness, and germs, it is used broadly in food and pharmaceutical packaging. The purpose of aluminium is to make long-life packs (aseptic processing|aseptic packaging) for drinks and dairy goods, which allows storing without refrigeration. Aluminium foil containers and trays are used to bake pies and to pack takeaway meals, ready snacks and long life pet foods.

Aluminium foil is widely sold into the consumer market, often in rolls of 500 mm (20 in) width and several metres in length.It is used for wrapping food in order to preserve it, for example, when storing leftover food in a refrigerator (where it serves the additional purpose of preventing odour exchange), when taking sandwiches on a journey, or when selling some kinds of take-away or fast food. Tex-Mex restaurants in the United States, for example, typically provide take-away burritos wrapped in aluminium foil.

Aluminium foils thicker than 25 μm (1 mil) are impermeable to oxygen and water. Foils thinner than this become slightly permeable due to minute pinholes caused by the production process.

Aluminium foil has a shiny side and a matte side. The shiny side is produced when the aluminium is rolled during the final pass. It is difficult to produce rollers with a gap fine enough to cope with the foil gauge, therefore, for the final pass, two sheets are rolled at the same time, doubling the thickness of the gauge at entry to the rollers. When the sheets are later separated, the inside surface is dull, and the outside surface is shiny. This difference in the finish has led to the perception that favouring a side has an effect when cooking. While many believe that the different properties keep heat out when wrapped with the shiny finish facing out, and keep heat in with the shiny finish facing inwards, the actual difference is imperceptible without instrumentation.The reflectivity of bright aluminium foil is 88% while dull embossed foil is about 80%.

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Q:What the food grade aluminum-foil paper concretely mean?
You may rest assured. It's ok only if it conforms to the food grade. It doesn't matter if the material is soft. Concretely, the alloy is 8011. Thickness is about 0.015 or 0.02 and width is 300 or 450. I am the manufacturer of aluminum foil.
Q:What is the specific weight of aluminum foil?
The specific weight of aluminum foil is 2.7. Aluminum foil weight = thickness *2.7kg* area. For example, 0.05mm aluminum foil with 30 square meters, so the weight is =0.05*2.7*30=4.05kg.
Q:Does it hurt much to work in aluminum foil manufacturing enterprises? Ten
No longer produce a line of aluminum foil contact is not much, and no harm to the human body.Think 1 metal aluminum at room temperature, there is no volatile, so it is not easy to enter the human body2, the harm of metal aluminum is mainly a dust inhalation, such as aluminum products processing line work, two solution intake, such as regular use of aluminum products, or oral medication containing aluminum ions and so onThrough your description, it seems that you have no examples of such contacts in your job (foreign trade is generally foreign sales and the like), so it will not have much impact, usually pay more attention to the line. I guess the company also has the corresponding protective measures to relieve the danger class, ANN
Q:Does the aluminium tin foil poisionous?
The tin foil bag is used in the barbeque. The poisionous tin foil or the aluminium foil bag are used in the barbeque to wrap the food and the sauce is forbidden to add. The experts said that the sour sauce may have an reaction with the aluminium tin foil paper to produce the aluminium and tin in the food. the minor symptom can be acute gastroenteritis, the severe symptom can cuase the brain hurt and alzheimer disease. while the most of present coverge material in the barbeque selling on the market is aluminium tin foil paper.
Q:What are the brands of aluminum foil coiled material?
ATL aluminum coil (film) self-adhesive waterproof coil. ATL aluminum coil (film) adhesive waterproof coil is a thermo printing material by calendering aluminum into a plate. Its thermo printing effect is similar to that of silver coil thermo printing, thus it is also called fake silver coil. Because of its softness, malleability and silver gloss, the calendered plate can be processed into a aluminum foil plate by pasting something like sodium silicate on the offset paper and also can be printed. However, since the color of aluminum foil may dark as a result of oxidation or fade due to friction or touching, thus it is not suitable for thermo printing long-preserved book cover.
Q:The difference between ground heating reinforced aluminum foil paper and non reinforced
They offer that reinforcement expensive is a deliberate bidding means for such a dishonest man you can let him suffer.
Q:What's the application of aluminum foil?
1. Aluminum foil can be stuck on the walls of kitchen for anti-fouling and cleaning. 2. Aluminum foil can be used to keep food fresh.
Q:Overview of aluminum foil
Q:The network structure of aluminum foil and separate line together with differences
So, there is no structure with aluminum foil, but some manufacturers do with shielding network line structure and a layer of independent Mylar, then + wire, coupled with aluminum foil.
Q:How can I use aluminum foil for microwave oven? Fifty
Microwave oven using skills:1, the use of aluminum foil. Other parts of the corner pointed wings, chicken or fish head, tail or cake too easy to cook, cover with aluminum foil wrap can achieve the purpose of cooking evenly.2. Use of vessel cover or plastic film seal. When cooking, stewing food and fried vegetables, in order to preserve the original flavor of the food, prevent excessive evaporation of water, and accelerate the cooking speed, the vessel cover or plastic wrap should be used.3, the use of paper towels and cloth towels. A piece of chicken slices baked with bread or biscuit or bread crumbs and served with a paper napkin under the food to keep the food surface dry and crisp. When making steamed bread or cakes, it can be sealed or wrapped with wet gauze or paper towel to prevent moisture from evaporating.4, halfway to stir soups, steak or steak turn over, or overlap the more serious food reset, help to enhance the cooking effect.5, at the end of the heating period, the use of food for a period of time or for some food additives with some seasoning (such as cooking poultry meat, pour the emulsified oil or sauce on the face, then sprinkle some pepper powder, bread crumbs, etc.) can achieve satisfactory effect of heating can not do.

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