How to use aluminum foil sheet better

Aluminum foil sheet is a common spare in home cabinets. It has the advantages of low price, easy to use, disposable, no cleaning, high temperature resistance and heat preservation.

(1) Oil-proof and cleaning aids. First of all, we can fold the aluminum foil at a more beautiful angle and spread it on the plate. Then we can put on greasy dishes. After eating, as long as the aluminum foil is removed, the cleaning can be done more easily. Similarly, it can also be laid on the dipping board to cut greasy food materials, so as to prevent the dipping board from being difficult to clean. Or before cooking, the aluminum foil can be pasted on the wall in front of the gas stove, so as to avoid the oil stains sprayed difficult to remove.

(2) Carbon baking and flavor enhancement of wrapped food materials, of course, can also be wrapped in aluminum foil for barbecue, such as corn, it can lock the fresh and sweet flavor of food materials! Aluminum foil generally has a light and fog surface. One side of aluminum foil is bright, the other side is not bright, how to use it? aluminum foil shiny side up or down.Aluminum foil is divided into smooth surface and fog surface, so which side should be directed towards the photothermal place? Fog surface is easier to absorb heat, so the fog should be directed towards the photothermal place, in order to play its role. Therefore, when baking food, wrap the food in the bright surface of aluminum foil and face the charcoal fire in the fog, the food is easy to bake.

Some people say that barbecuing with aluminium foil can cause cancer, but the Health Bureau points out that there are no reports about the toxic substances produced by barbecuing food covered with aluminium and tin foil. However, based on safety considerations, the Department of Health advises consumers not to drop acid substances such as lemon juice into aluminium foil when baking food wrapped in aluminium foil, because aluminium foil is a metal. When metals are mixed with acid substances, chemical changes will occur, which is prone to produce harmful substances to human body.

(3) It can help freeze quickly. Meat or seafood bought from the market can be wrapped in fresh film, then wrapped in a layer of aluminum foil art into the freezer, so that food can be frozen faster and keep food fresh!.

And don’t throw away used aluminum foil like this! Let’s reuse them again! 1. We can crush used aluminum foil into a small ball and throw it into the drain hole of the dishwasher. The aluminium foil ball will collide with the drainage hole after being washed by water, which will produce metal ions. The drainage hole is not easy to stick to the greasy residue of kitchen and has the function of deodorizing.

(4) There are many edges and corners in the rolled aluminium foil, which can scrape like sandpaper. At this time, it can be used to scrape the peel of potatoes, burdock, ginger and other fruits without worrying about too much peeling, and the details are easy to peel, becoming a safe peeler.

(5) It can also be used to remove the burning part of the bottom of the pot. However, if the family is using stainless steel pot, avoid using this method, easy to scratch.

(6) The blunt scissors in the home can easily be restored by cutting them on two or three layers of aluminum foil on grill. Similarly, you can also fold several overlapping sheets of aluminum foil, and then cut them slowly with a kitchen knife, as a ready-made grindstone!

(7) It may not be necessary in the tropics. In countries like Japan, Europe and the United States where winter snows, when the weather is cold, drainage pipes are liable to freeze and water cannot come out. At this time, the water pipe can be wrapped with non stick aluminum foil, which is said to insulate the frozen air.

What is the properties of aluminum foil

What is aluminium foil

Aluminium foil is a very thin sheet of rolled aluminium supplied in its pure form (‘commercial purity’) or in a variety of alloys and tempers which give a wide choice of tensile properties.

The thickness of aluminum foil sheets ranges from the thinnest currently produced commercially at about 0.0065 mm (or 6.5 µm) to the defined upper limit of 0.2 mm (or 200 µm). Material thicker than 0.2 mm is defined as sheet or strip.

Aluminium foils thicker than 25 μm 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 (wrongly) 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. Increased reflectivity decreases both absorption and emission of radiation. Foil may have a non-stick coating on only one side. The reflectivity of bright aluminium foil is 88% while dull embossed foil is about 80%.

The attributes of aluminum foil art

• Abundance – aluminium is plentiful with no danger of world depletion.

• Barrier efficiency to light, gases, oils and fats, volatile compounds and water vapour

• Temperature resistance from deep-freeze to oven processing

• Heat conductivity and reflectivity

• Electrical conductivity

• Strength and durability

• Compatibility with foods and pharmaceuticals

• Ease of lamination and coating

• Flexibility

• Formability and non-returning dead-fold

• Decorative potential, brilliant or matt surface

• Printability by flexo, gravure and offset litho

• Non-toxicity

• Low weight

• Recyclability

• Corrosion resistance

• Cost-effectiveness – optimum performance yet resource economy

Surface finish

Corrosion Resistance

The naturally-occurring surface oxide on all aluminium in the presence of oxygen in the atmosphere acts as a shield and renders foil substantially corrosion resistant. Aluminium is also chemically resistant in contact with substances in the pH range 4 to 9.

Compatibility with food and chemicals

Non-reactive except to substances of high acidity or alkalinity (see Corrosion Resistance). Resistant to most common compounds in solution.

Formability

Dead fold

Non-absorbency

Non-absorbent and proof against grease, oil, water and other liquids.

Hygiene

Foil is sterile following annealing, and does not harbour or support the growth of bacteria.

Toxicity

Aluminium is present in many fresh vegetables and is non-toxic in amounts and compounds normally encountered. The metal does not accumulate in the body and is non-reactive with virtually all foods, drugs and cosmetics.

Taste, odour

Tasteless and odour-free, alu foil imparts no detectable taste or odour to foodstuffs.

Opacity

Foil is a solid metal. It transmits no light and is a total barrier to light including the UV spectrum.

Reflectivity

Reflects approximately 98% of radiant heat and light.

Non-magnetic

Aluminium is insignificantly magnetic and therefore provides excellent electrical shielding.

Recyclability

Aluminium is easily recycled. Plain aluminium foil can be compacted and re-melted. Laminated aluminium is processed to separate the supporting layers and the aluminium residue is reused in other applications. In addition, the energy contained in the thin foil component of a laminate can be recovered in the form of heat.

The returnability of aluminum foil sheet

What happens if the aluminum foil sheet is not recovered, but disposed directly in the incinerator? After heating, the surface of the aluminum foil will oxidize quickly, and then release a lot of energy and these energies can also be recovered. At this time, the aluminum without oxidation will melt and reclaim it in the bottom ash of the incinerator. (more…)

Aluminum foil has many excellent performance as packaging material

Contemporary aluminum foil mill roll body width has reached more than 2200mm, the rolling rate reached 2000m / min or more, the roll weight reached more than 20t. Aluminum foil is usually used as a packaging material, widely used in food, beverage, cigarette, medicine, photographic floor, household commodity and so on.It can also be used as a decorative line of gold and silver, wallpaper and a variety of stationery printed materials and light industry products such as decorating grades. (more…)