Why Does Coke Taste Different According to Packaging?

not only in our country abroad as well There are determinations and reviews written on this subject, so this taste difference is clearly found.

Although there is no 100% scientific study on the subject, of experts Some of his views are quite logical. Here are those reasons:

First, let’s look at what Coca-Cola answers to this mysterious question.

Answer on the official website:

Coca-Cola has been produced to the same high quality standards everywhere since 1886. food products the taste does not differ depending on the packaging. All of our packaging we use is suitable to preserve the taste of our products in the best possible way. As with all food products, Coca-Cola should not be kept under direct sunlight and high temperatures and should be stored under appropriate conditions. In this way, it will preserve its taste as on the first day.

Coke companies deny this, but let’s continue to chase the truth.

That mysterious formula of cola is the same in every package, but the packages can really change the taste of cola. A food chemist This is because, according to Sara Risch, member of the Institute of Food Technologists and Food Technologists, some substances that interact easily it could be.

For example, the polymer covering aluminum cans can absorb a small amount of soluble aroma. Acetaldehyde in plastic bottles can also pass into cola. Such potential chemical exposures are regulated in healthcare settings, but even the small amounts allowed can alter the taste.

So why is cola in a glass bottle tastier?

Because the glass bottle consists only of glass, It does not contain any other chemical components. Therefore, there is nothing in it that can change the taste of cola. The cola you drink from the glass bottle is the real cola taste. It is even recommended that drinking water be in glass bottles and carboys.

Tin cans, on the other hand, are aluminum and their interiors are lined with a polymer that may contain BPA or Bishphenol A.

a retired American Chemical Society chemist Rick Sachleben, who has had little to no taste, says it has little effect on taste. “The amount of that ingredient that goes into the contents of a container is so low that I don’t think it will have any effect on flavor.” says.

This liner preserves the taste of cola and prevents it from being contaminated by metal. Yet despite this lining, people are still in the can metal taste thinks it is. In fact, there is no metal mixed into the coke. Our tongue, which is very sensitive to metal, touches the metal while drinking coke and we experience this feeling. Coke only comes into contact with the metal at this stage. We experience a similar feeling when drinking water in a metal glass.

Why does cola in a plastic bottle taste worse than in a glass bottle?

Plastic bottles are made with PET or polyethylene terephthalate. While both cans and plastic bottles contain chemicals you don’t want to consume in large quantities, drinking the beverages in them is completely safe. it is safe. These packages undergo extensive testing.

Taste major at Harvey Mudd College researcher According to Christy Spackman, M.D., humans can detect even very small amounts of pollutants. Although tin cans and plastic bottles are composed of chemicals, we said that the drinks in them are safe to drink, but still the amount of purity is not zero. Even the slightest contamination can affect the taste.

Coke’s carbon dioxide is also affected by the structure of the packaging.

According to a 2009 study by Science Magazine, Coke’s gas can also cause taste changes. In addition to the tingling sensation caused by the amount of bubbles, even the gas coming out of the nose increases the aroma taken from the cola.

The carbon dioxide level in cola may vary depending on the packaging. But how?

Carbon dioxide, which can slowly leak out of the plastic bottle, It cannot leak from the glass bottle. The structure of glass is quite tight, it does not consist of a loose mesh like plastic. The same tightness applies to aluminum. The diffusion rate differs according to the nature of the substance.

Diffusion: It is the spontaneous diffusion of substances from a very dense medium to a less dense medium. In physical chemistry, the random movements of molecules depending on their kinetic energies are called.

Temperature and light can also cause taste changes.

When the lid of the package kept in heat is opened The gas inside escapes faster. Since plastic bottles can easily deteriorate in heat, serious deterioration may occur in the taste of cola. Light also affects molecules, tin cans are more advantageous in this regard. Therefore, storage conditions are also very important in order to preserve the taste of cola.

Sources: Business Insider, Popular Science