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The sanded jug (pictured) is immersed in acid that dissolves the aluminum

How even cans have a hidden PLASTIC lining: Experiment reveals the little known & # 39; secret & # 39; clear film in most cans for beverages that can be revealed by burning off the aluminum around it

  • There is a secret plastic film that covers the inside of most aluminum cans
  • It is used to block a chemical reaction between aluminum and acid in the drink
  • The acid reacts with the aluminum and creates aluminum phosphate and hydrogen
  • Excessive amounts of aluminum have been associated with bone and brain disorders
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There is more to a coke can than to the eye, actually a whole inner tube made of plastic.

A shocking video from MEL Science has revealed the secret plastic coating in aluminum cans after the metal has been dissolved with detergent.

The film serves there as a barrier against the corrosive effect of acid drinks on the reactive metal.

A high level of everything that has reacted with aluminum is a potential threat to bone and brain function in humans and this prevents it from ending up in humans.

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Experts told MailOnline that the film & # 39; negligible & # 39; is and makes a small percentage of the can and is destroyed before the metal is recycled.

Carbonated drinks are filled with carbon dioxide gas, and that's what gives them food bubbles.

The carbon dioxide gas dissolves in liquids and forms an acid, so that bubbling drinks such as Coca Cola have a high acidity.

The responsible acid is normally phosphoric acid in coke and citric acid in juice-based drinks such as Fanta.

If this acid came into direct contact with the metal aluminum, it would react with the metal and corrode, creating an aluminum compound known as aluminum phosphate and hydrogen gas.

High levels of aluminum in the body can be toxic and excessive values ​​can cause bone and brain abnormalities.

The plastic liner forms a barrier between the product and the metal and offers protection against foodborne diseases.

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According to the website of the Aluminum Association, the plastic coatings in coke cans form a barrier between the product and metal.

& # 39; These coatings have been crucial to improving food and beverage safety since they were introduced more than 50 years ago & # 39 ;, he wrote.

These movies are also & # 39; critical & # 39; been to improve food and beverage safety since their introduction 50 years ago.

Matt Meehan, from The Aluminum Association, told MailOnline what happens to the plastic while recycling metal cans.

He said: & # 39; First the cans are shredded before they go into a heating oven.

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& # 39; The non-metallic components of the can are first burned off at high temperature to EPA (Environmental Protection Agency) approved emission levels.

& # 39; And the remaining gases are passed through a finely divided control system to remove any remaining solids. & # 39;

The sanded jug (pictured) is immersed in acid that dissolves the aluminum

The inner plastic film (shown) can then be seen because it contains the Coca Cola liquid

The inner plastic film (shown) can then be seen because it contains the Coca Cola liquid

A shocking video revealed the secret plastic coating in a cola can after the aluminum metal has been dissolved with detergent. The plastic film is there to act as a barrier against the corrosive effect of acidic coca-cola on the aluminum that is a highly reactive metal

WHAT IS ALUMINUM AND HOW IS IT RECYCLED?

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Aluminum is the most common metal in the earth's crust and is widely distributed.

Aluminum is a very reactive element and is never found as the free metal in nature.

It is found in combination with other elements, usually with oxygen, silicon and fluorine.

These chemical compounds are often found in soil, minerals (eg, sapphires, rubies, turquoise), rocks (especially clotting rocks) and clays.

Aluminum as the metal is obtained from aluminum-containing minerals, mainly bauxite.

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Aluminum metal is light in weight and silvery-white in appearance.

It is used to make a large number of materials based on food – including cans.

They can be separated from steel cans by a magnet and are then put into a recycling process that removes any impurities.

The plastic canister inside the cans, which prevents any unwanted reaction, is burned and paint is stripped away.

It then goes through a remelting process and turns into molten aluminum, which removes the coatings and inks that may be present on the aluminum.

The aluminum is then made into large blocks that are called ingots. Each bar contains approximately 1.6 million cans of liquor.

The blocks are sent to mills where they are rolled out, this gives the aluminum more flexibility and strength.

This is then processed into aluminum products such as cans, chocolate packaging and ready-made meal packaging.

In just 6 weeks, the recycled aluminum products are then sent back to the stores to be used again.

M. Meehan also added that the plastic element does not make a significant part of the package.

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& # 39; We have no specifications about the precise weight of the coating liner (and this probably varies from product to product), but I can say that it is a negligible amount of the total can. & # 39;

On the whole, cans are much better for the environment than plastics, Mr. Meehan said, because they have a faster recycling rate than glass or plastic and can be recycled repeatedly in a closed loop process that only takes about 60 days.

Aluminum is the most common metal in the earth's crust and is widely distributed.

It is a very reactive element and is never found as the free metal in nature, but instead found in combination with other elements, usually with oxygen as an oxide.

These chemical compounds often occur in nature, such as in the soil and rocks.

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