How to wrap food in aluminium foil

How to wrap food in aluminium foil? The aluminium wrapping foil is divided into glossy surface and matte surface. The glossy surface can better absorb external heat and help food to be heated evenly. When you wrap food, the matte surface should be in contact with food, so that the heat is evenly distributed on the surface of the food, shortening the cooking time.

Aluminum foil has the functions of heat preservation, waterproof, sealing and conduction. In addition to helping food to be evenly heated and preventing food from scorching during cooking such as grilling and baking, it can also play a role in cold storage, sealing, heat preservation, and separation of heat sources. It is also indispensable for barbecue in the wild.

aluminium wrapping foil

In addition, some meat dishes are prone to oil fume or scorch during cooking. Aluminum foil wrap can also solve the problem and avoid the generation of harmful substances. Tin foil is like a mysterious coat, which envelops the nutrients and moisture in the ingredients. The moment when the foil is cut with a knife, the aroma is tangy.

Aluminium wrapping foil paper can withstand high temperatures of about 400 to 600 degrees Celsius, so whether it is boiled, oven or charcoal roasted, there is basically no need to worry too much about the risk of elution of heavy metals.

Is aluminium foil safe to wrap food? Yes. However, the Food and Drug Administration reminded that acidic materials will erode the aluminum wrap foil. It is recommended that the ingredients be cooked and removed before adding acidic substances such as vinegar, lemon, tomato sauce, etc. In addition, if the surface of the aluminum foil is scratched, it is recommended to replace it with new products.

Is aluminium foil safe to wrap food

Aluminum foil rolls are light, shiny, strong in reverse ability, good in barrier properties, strong in adaptability to temperature, stable in shape at high or low temperatures, strong in light-shielding, and excellent in fragrance retention. That is why is aluminium foil used to wrap food. However, many people still have doubts about safety of aluminum foil for food wrapping. Is aluminium foil safe to wrap food, anyway?

In the first place, aluminum foil can not be used to wrap some foods containing ingredients that will definitely not work if they react with aluminum, although the surface of the aluminum foil is indeed treated with an oxide film to protect it. Aluminum is an easily oxidizable metal. It has an oxide layer on the surface of the aluminum foil, so that the aluminum ions are tightly fixed by the oxide layer, so that it cannot escape; it further improves the safety of our use of aluminum foil. But keep in mind, try not to touch the aluminum foil or aluminum with strong acid items, because the acid will destroy its oxide layer.

aluminium foil

Second, aluminum foil packaging and wrapping has been popular for half a century in many countries in Europe, America, the Middle East and other regions. It has also been widely used in many industries such as domestic aviation, hotels, and West Point cooking. Its worldwide user population is very large. In addition, China, as a major exporter of aluminum foil products, also has world-leading technology in the aluminum foil packaging industry. The products it produces are fully in line with national food packaging safety.

Finally, as emphasized by many scientists, “No food is absolutely safe, and no food is free of any hidden dangers.” At present, it seems that no authoritative institution has experiments to prove that aluminum foil does harm to the human body. The so-called negative effect of aluminum on the human body actually refers to free aluminum ions. For example, the alum used to make rice noodles into rice noodles also becomes aluminum hydroxide. If such aluminum ions are taken in excessively (note that the precondition is excessive dosing , which is not easy for ordinary people to reach), they will cause certain health problems.

So rest assured. Wrap beef and vegetables with aluminum foil as much as you like at a barbecue. Believe in science and practice, don’t scare yourself.

Why aluminium foil is used to wrap food items

An aluminium foil is used for wrapping food because its performances fully meet the requirements of food packaging, the ultimate goal of which is to extend a food’s shelf life as long as possible. To achieve this, the food must be kept from possible negative materials like light, moisture, micro organism etc.

Aluminium foil is used to wrap food items

The aluminum foil are just up to the mustard. As a pure metal product, it’s opaque and nonporous, keeping either light or water gas outside while being used to wrap food. In addition, the aluminium metal is endowed with a natural corrosion resistance. Few of the corrosive materials are capable enough to pierce its defense line to reach the inner side. In this way, bacteria and viruses are kept off.

Aluminum foil itself is sanitary enough, neither emitting nor attracting detrimental elements. The inside of food packaging aluminum foil made to be as smooth as possible, in order to reduce possibility of damages from friction between the foil and wrapped foods.

Because of its advantages above, an aluminium foil roll is used to wrap food items like chocolates, cooked beef, liquid milk, to be baked mini cakes and so on, playing an irreplaceable role in our daily life.

Food aluminium foil roll production process problems

Many problems might rise in the aluminium foil production process, among which are thickness difference, water marks and oil remains. Here we deal with the three.

The thickness difference of aluminum foil rolls is often encountered in the rolling process of aluminum foil production. 3% thickness difference may be easy to achieve in aluminum plate manufacturing, but it is very difficult in aluminum foil production. Because the thickness of aluminum foil is very thin, such as drug foil, i.e. medical aluminum foil, the thickness is usually 0.02mm-0.025mm, many fine conditions will have a serious impact on it. Such as temperature, oil film, oil and gas concentration, etc. The length of a roll of aluminum foil can reach tens of thousands of meters, the rolling time is long, and it is easy to cause the uneven thickness. The only way to adjust the thickness is the tension speed. Therefore, it is very difficult to control the thickness difference of aluminum foil within 3%, and the requirements for equipment and environment are very strict.

aluminium foil roll

A water mark refers to the water drop on the aluminium foil food before rolling. After rolling, some white spots will be formed. If the water mark is slight, it will affect the appearance and brightness of the aluminum foil surface. If it is serious, it may cause the ribbon of the aluminum foil. The first section of water mark is caused by the water drop in the rolling mill on the surface of aluminum foil or the water drop in the oil is formed in the rolling process. It is necessary to control the water content in the oil and keep the rolling mill clean and sanitary to avoid the water mark of food aluminum foil.

Oil remains are often encountered in the rolling step of aluminum foil production process, which means that there are some extra oil in the aluminum foil food after rolling, that is, oil other than rolling oil film. This kind of oil is complex and dirty. It is usually dripped on the surface of the aluminum sheet by the oil at the roll neck or at the outlet of the rolling mill. Oil pollution has a great impact on the quality of aluminum foil. Some aluminum is used as packaging or decoration materials, and the surface must be smooth and bright. Oil pollution will also affect the thickness of the finished aluminum foil roll. In the annealing process, it is easy to form bubble like bulge, and the oil pollution is relatively dirty, which will form a lot of residues and affect the use of aluminum foil. Oil pollution is a very important index to evaluate the quality of aluminum foil.

How much is the cost of aluminium foil

  The cost of aluminium foil is relatively stable, although it’s influenced by aluminium ingot price, currency exchange rate and shipment cost. The impact of the factors above is smaller in comparison to process methods and raw material type of the foil.

aluminium foil rolls

  Harga aluminium foil of 8011 rolls ranges between $2750 to $3000 per metric ton. The minimum ordering quantity is at least 2 tons, and some suppliers make it 5 tons. It can be used in medicine packaging, food packaging, lunch box material, tape foil, cable foil, milk cover material, bottle cover material and many other fields. Among our hard-core products, 8021 aluminium foil boasts excellent insulation of moisture, light and heat, used more frequently as a raw material for composite products. 8021 aluminium foil cost is higher than 8011. We have both rolls of thickness from 0.019mm to 0.2mm, and width from 100mm to 1650mm.

  In comparison to 8011 and 8021, 8079 aluminum foil displays a higher strength and better elongation. In addition to its advantages like moisture-proof, airtight, light-proof, wear-resistant, fragrant, non-toxic and tasteless performances, it is easy to process beautiful patterns and patterns of various colors on it, which helps it win more popularity. 8079 aluminum foil is widely used in food packaging, medicine packaging, battery soft package and other fields. As a result, the cost of aluminium foil 8079 is higher, too.

Household and food grade aluminium foil

  Household aluminium foil and food grade aluminium foil are not the same thing. Household aluminium foil rolls are definitely of food grade, but food grade rolls are not necessarily household ones. By household we mean kitchen or used at home directly.

Household and food grade aluminium foil

  Food grade aluminum foil is free from toxic elements like heavy metals, and its surface is clean without rolling oil after being annealed at high temperatures. It’s further divided into household and packaging aluminum foil. The former is made of 8011 aluminium alloy, with a thickness between 0.015mm and 0.02mm, and width from 300mm to 450mm. Household rolls spotted at shops are usually small, weighing only less than 2kg, packed in a cardboard box. These, however, are not what Haomei Aluminium supplies. We usually get in contact with clients from overseas who purchase rolls with a weight no less than 20kg and cut the rolls into parts of shorter length and small width. The cut parts are eventually rolled into smaller rolls and placed in cardboard boxes sent to super markets. There’s no need to worry about safety problem of 8011 aluminium foil for household use from China, for most of our products are exported to America and Europe.

  Packaging aluminum foil is the other important use of food grade aluminum foil. It’s used to package food. The world’s food industry is in an important period of vigorous development. The emergence of aluminum foil for food packaging has greatly improved the level of food processing and accelerated the modernization of people’s diet. There are two main applications of aluminum foil in food packaging: one is aluminum-plastic or aluminum paper composite packaging; the other is aluminum-plastic paper multilayer composite packaging. China’s food aluminum foil demand is about 30,000 tons / year. Haomei Aluminum is a large-scale manufacturer of aluminum foil raw materials for food packaging. The raw materials of aluminum foil for food packaging are mainly 1 series, 3 series and 8 series products, mainly including model numbers 1060, 1100, 3003, 8011, 8021 and so on. According to the needs of the packaged food, the softness and hardness of the alloy is selected, that is, the alloy state. The commonly used states are H14, H16, and H18.

Is it safe to use aluminium foil packaging material

  Nowadays aluminium foil packaging material has become ubiquitous in various industries. Even people who leads the simplest life can not have avoided using products packed in aluminium foil. Packaging aluminium foil hold toothpaste, facial cream and mini cakes hot from the oven. We have got quite used to them. The application of aluminium foil for packaging in food industry has a history of over a century. Despite this, a question keeps haunting us even today: is it safe to use aluminium foil as a packaging material?

aluminium foil packaging material

  The answer is positive. Tests show that packaging aluminium foil is free from potential health problems of heavy metals, ethanol, oil or paints. The currently adopted aluminum foil composite technology in China has filled in the domestic blanks of similar technologies, reaching the highest level in international market. Made by the high barrier polypropylene composite technology, the PP film on the inside of aluminium foil packaging materials can effectively isolate the food from the metal sheet, which has a high degree of hygiene and can effectively extend the preservation time of the food. Food packaged in such a material does not change color or taste. In addition, the use of aluminium foil for packaging attributes a lot to environmental protection. The packaging materials can be recycled in a more environmental way than plastics. Food containers such as metal cans and boxes made of aluminum foil have the characteristics of light weight, zero rust, and high food preservation safety, widely used in packaging of device paste food, sauce food, and wet and dry canned food, including paste, cream, tomato sauce, chili sauce, apple sauce, peanut butter, canned fish and various meat canned foods.

  Haomei packaging aluminum foil, all made of domestic raw materials, helps to save more than 50% of the raw material aluminum compared with the traditional process, which greatly reduces the product cost and provides a price advantage for your products. Safe, light, hygiene, convenient and environmentally friendly, aluminum foil packaging materials will replace tinplate food containers and become a new upgraded product in the packaging industry.

Aluminium foil properties

  Aluminium foil properties include high cleanness level in surface, nontoxic material, excellent insulation effect, good plasticity, poor resistance to tearing force and high possibility in reacting to certain metal materials. In detail, aluminum foil has the following properties.

  (1) The surface of the aluminum foil is extremely clean and hygienic. No bacteria or microorganisms can grow on the surface.

  (2) Aluminum foil is a non-toxic packaging material, which can be in direct contact with food and you are exempt from any worries that it may endanger your health.

aluminium foil

  (3) As an odorless and odorless packaging material, aluminium foil rolls will not make the packaged food have any odor.

  (4) If the aluminium foil itself is not volatile, it and its packaged food will never dry or shrink.

  (5) No matter at high or low temperatures, aluminum foil rolls will not have the phenomenon of grease penetration.

  (6) Aluminum foil is an opaque packaging material, so it is a good packaging material for products exposed to sunlight, such as margarine.

  (7) Aluminum foil has good plasticity, so it can be used to package products of various shapes. Various shapes of containers can also be arbitrarily formed.

  (8) Aluminum foil has high hardness and high tensile strength, but its tear strength is small, so it is easy to get torn.

  (9) The aluminum foil itself cannot be heat-sealed, and it must be coated with a heat-resistant material, such as pe, to be heat-sealed.

  (10) When aluminum foil comes into contact with other heavy metals or heavy metals, there may be adverse reactions.

  Haomei supplies 8011 aluminium foil for food packaging, 3003 aluminium foil for food containers and foil rolls of other specifications (8021, 8079, 1070, 1060, 5052 etc.). Welcome to send inquiries!

Application of 8011 aluminium foil products

  8011 aluminium foil products are the most frequently inquired ones among aluminum foil rolls. Haomei produces 8011 aluminium foil of the following specifications:

  Alloy: 8011

  Temper: F,O,H14,H16,H18,H19,H22,H24,H26,H28

  Thickness: 0.015-0.2mm

  Width: 100-1600mm

8011 aluminium foil products

  The application of of 8011 aluminium foil products covers four main areas:

  1. Bottle sealing caps. Here an aluminium foil roll is made into small round pieces whose diameters are a little larger than the bottle mouths to be sealed. The bottles will be filled with various liquid, powder or solid products like wine, spirit, cosmetic cream, pills, powder milk, liquid milk, liquid medicine, juice, yogurt and so on. These foil rolls must be of high degree in health level, which is usually labeled as “food grade”, boasting A level result in test and low ear rate in application.

  2. Pharmaceutical packaging. These aluminium products products include PTP foil, cold rolling foil, 8011 h18 aluminium pharmaceutical packing, capsule aluminium foil and so on. Our 8011 aluminium foil has an excellent performance in convex value while being made into capsules, and no cracking or holes will come into being. The foil is strong in hardness and outstanding in sealing effects.

  3. Food packaging. This can be further divided into many types of aluminium foil rolls, such as pure food packaging foil, heat sealing foil, food container aluminium foil, container foil and so on. These foil rolls are of top grade in hygiene level with a smooth pure surface.

  4. Industrial aluminium foil. This type of 8011 aluminium foil products are used for transformers, aluminium foil tapes, cable wrapping, filters etc. They must be flat and free from oil.

  As a matter of fact, the application of 8011 aluminium foil covers almost all uses of all types of aluminium foil rolls. That’s why when we speak of aluminium foil rolls, we first think of 8011. in addition to 8011, there are 8021, 8079, 1060, 1070, 1100, 3003, 3004, 1235 etc. Welcome to contact us for more information!

Aluminium foil for cooking

  Aluminium cooking foil, also called aluminium foil for cooking, is a piece of paper made of flattened metal aluminum. It is mainly used for food cooking and containing in the kitchen or for making simple and clean materials. Hundreds of thousands of tons of aluminium foil rolls are used worldwide to protect and package food, cosmetics and chemicals. Most aluminum foil is shiny on one side and dull on the other. The aluminum foil paper used for cooking can wrapped on both sides of the food. Generally, it is recommended to wrap it with a bright surface to improve the heat transfer effect.

  Aluminium cooking foil is light in weight, good in ductility, and low in price, thus is a kitchen standing product widely used in daily life. Aluminum foil has bright and matte surfaces. The matte side takes in heat and you need to make it to face the heat source in cooking, and the bright surface can reflect the heat energy, and you can wrap the ingredients with the bright side inward for cooking. Some foods (eg sweet potatoes, edible mushrooms, etc.) must be wrapped in aluminum foil to avoid burning. Seafood and oyster mushrooms are also cooked in aluminium foil to retain their flavors.

aluminium foil for cooking

  Another use of aluminium foil for cooking is in the oven. Round ingredients such as pineapple bread and small meals are wrapped in aluminium foil before being fed into the oven, for they are prone to scorch with the inner unheated if these food materials are directly baked in the oven. Wrapping them with the bright side inward, since the heat conductivity of this side is better, can have foods heated evenly inside and outside. In the baking process, the heat source of the oven is transmitted to the aluminum foil paper and then to the food, so that the food and the aluminum foil paper are sealed in the sandwich to generate water vapor and hot air, and the food can be evenly heated.

  The household aluminium foil has a use unrelated to cooking in the kitchen. As known to all, after the ginger and garlic are put on the grinding plate and ground into mud, residues are always stuck in the small hole of the grinding plate, which is troublesome to clean and easy to cut hands. Here if you have a piece of aluminum cooking foil laid on the grinding plate with the bright side facing upwards and then ground these ingredients on it, the problem will be solved. The aluminum foil is well-shaped and flattened on the grinding plate. The convex part of the grinding plate will make the aluminum foil have sharp edges and corners, which is very convenient for grinding mud.

  Haomei supplies industrial aluminium foil 8011, 8021, 8079, 1060, 1070, 1100, 3003, 3004, 1235 and 5052. Welcome to send inquiries!