It’s all coke： the glass bottle is cool, but the plastic bottle is so bad.

There is not a summer that can be saved without iced coke.

On the small problem of "drinking coke", many people have their own habits. For example, some people only prefer a certain fixed brand (the battle between red and blue), while others are particularly picky about the containers of coke and are unwilling to drink coke in plastic bottles.

It’s easy to understand the brand of coke, but what about the container of coke?

It turns out that,Many people think that the taste of cola in different packages is different, and the taste of cola in plastic bottles is not as good as that in glass bottles.

How does packaging affect the taste?

Why does the same cola taste different in different packages? Is there a difference in the composition of cola in different packages?

In fact, there is no such thing. A large coke company is aiming at the questions of coke lovers.Deliberately explained the taste of cola. No matter whether it is in glass bottles, plastic bottles or cans, all cokes are the same, and there is no difference in formula and production technology.

Officials claim that there is no difference between different packages of cola. Image from coca-cola.co.uk.

However, the company also admits that the taste of cola is influenced by many factors, such as temperature and packaging.

I don’t know if you’ve noticed,Iced coke is more full of gas! Carbon dioxide, the soul of cola, will dissolve in water to form carbonic acid (H2CO3). When the temperature is lowered, the solubility of carbon dioxide will increase, which will fully stimulate the taste receptors, make it more irritating to drink, and the tip of the tongue will have a sweet and numb wonderful experience.

Packaging may affect the taste because the degree of air leakage of different packaging is different.

At present, there are three kinds of common cokes in the market: plastic bottles, cans and glass bottles.

Coke in different packages, image source popsci

1. The glass bottle has good air tightness and sufficient carbon dioxide.

The earliest cola was produced in glass bottles. The main component of glass is silicon dioxide, which is very stable in chemical properties and hardly reacts with the substances contained. Moreover, the air tightness of the glass bottle is very good, and the carbon dioxide filled in it is not easy to escape.

Therefore, when you drink coke in a glass bottle, especially when you swallow a mouthful of iced coke suddenly, the happiness of rich carbon dioxide gas running through your mouth is incomparable to other drinks. This is the refreshing experience that only enough gas can create.

Glass bottles for coke, image source: coca-colacompany.

2. The coating of cans affects the taste.

At present, coke in cans and plastic bottles is more common than coke in glass bottles. The materials used to make cans are mostly aluminum, which is a relatively active metal with unstable chemical properties.

In order to prevent it from reacting with the ingredients in cola, there will be a special coating (epoxy resin) on the inner wall of the can, which is very stable and can separate the metal from cola, and at the same time prevent oxygen from entering the can and affecting the beverage ingredients.

3. Plastic bottles are not airtight enough, and carbon dioxide is easy to be lost.

As for the plastic bottle that is often rejected, its main component is polyethylene terephthalate, which is the famous PET.

The disadvantages and advantages of plastic bottles are very prominent. On the one hand, it is light and not easy to be damaged. On the other hand, its air tightness is not as good as that of cans and glassware, especially when the temperature is high or the sun shines directly, the loss of carbon dioxide in the bottle will increase obviously.

At present, plastic bottles are more and more widely used. Take Coca-Cola Company as an example. The selection of PET materials for the outer packaging of its products accounts for almost 45%. It is no wonder that most coke in supermarkets is bottled in plastic.

About 45% of Coca-Cola’s packaging uses PET material, and the picture is from statista.

How can I drink the "most authentic" cola?

Like most people think, coke in glass bottles is least affected by the outer packaging and can best maintain its original flavor.

However, considering that transparent glass bottles are poor in light protection, it is best to drink coke bought in glass bottles as soon as possible or keep it away from light.

Coke in cans tastes good, too. Compared with glass bottles, cans have good light-proof performance, and they can be cooled quickly in the refrigerator, so that iced coke can be obtained quickly.

As for some people who think that coke in cans has a metallic taste, it is probably because these people are particularly sensitive to metals. When drinking coke in cans, they first came into contact with the metal packaging, so they tasted the metallic taste.

If you want to choose coke in plastic bottles, you should choose the latest production date and drink it as soon as possible. In particular, we must be careful in choosing large-package cola, because if we can’t drink it all at once, the carbon dioxide in it will soon be lost, and the taste of cola will be greatly reduced. In addition, leaving it for a long time after opening the lid will also bring microbial reproduction and affect our health.

In addition, do you remember that someone commented that McDonald’s cola is the best?This is because the cola in the fast food restaurant is drunk and played now, and the carbon dioxide in the cola is also charged now, without loss, and the taste is naturally better.

Although many people with sensitive taste can taste the difference between different packages of cola, more people actually don’t care about this small difference.

After all, compared with the taste of death and curiosity introduced by various coke brands (such as cherry coke of Coca-Cola Company), the difference in taste caused by different packaging is really minimal.

Cherry cola

Cherry cola? Don’t I deserve a name? Image source wikipedia