Why are many beer bottles green?

Because the process of making glass in the nineteenth century was relatively poor, it was difficult to separate some ferrous ions in glass at that time, and the glass bottles made were green. Later, although the technology was getting better and better, the cost of removing impurities from the glass increased, but the value of beer was relatively low, so there was no need to spend more money to remove the magazine. As a result, there are still many cheaper beers that use green bottles.

Therefore, the brewery continued to use green glass bottles for beer production in later years, and the green glass bottles have been retained. <>

There was a time when people wanted to try to replace the green beer bottles. However, after a series of studies, it was found that beer will smell bad when exposed to sunlight. This is because when beer is exposed to sunlight, the riboflavin and alpha acid contained in the beer will be broken down and reacted.

Other darker bottles will absorb sunlight, so the beer will stink once it is stored in the sun, and only the green bottle can preserve the beer normally.

So there are still a lot of beers in green bottles on the market. Although the technology has gradually improved, there are many loads that can be loaded with beer, but the green bottle has been used, and it will have more advantages than other loads.

Beer is served in green or brown bottles, why is that? Why are beer bottles green?

First of all, the appearance of the beer bottle is green which can give people a cool feeling, and the desire of the person who buys the beer to drink will increase, and then the green light can be less sunlight and protect the liquid inside the bottle.

Because the green beer bottle looks, it will make people yearn for it more, and give people a better first look.

Because in this way the dark-colored bottle filters the ultraviolet rays from the sun, so that the quality of the beer is not affected.

There are several reasons why beer bottles are green:

1. Process limitations: In the middle of the 19th century, the level of science and technology was not high, and the manufacturing process was immature, and the impurities such as ferrous ions in the raw materials could not be removed.

2. Storage needs: Put the beer in a green glass bottle with a branch to reduce direct sunlight, delay the taste of beer, and store it for a longer time.

At that time, not only beer bottles, but also ink bottles, paste bottles, and even window panes had a slight green tinge. Dr. Cao Chengrong of the Institute of Physics of the Chinese Academy of Sciences told reporters: "This is because the original glass manufacturing process is not very exquisite, and it is difficult to remove impurity ions such as ferrous ions in the raw materials, so the glass produced is green."

Later, the glass manufacturing process was advanced, which could remove these impurities, but the cost was too high, and people found that green wine bottles could delay the taste of beer, and putting beer in green glass bottles could reduce direct sunlight, delay beer taste, and store it for a longer time. Therefore, at the end of the 19th century, people specially produced green glass bottles for beer, and the tradition of green beer bottles was preserved.

1. Process limitations: In the middle of the 19th century, the level of science and technology was not high, and the manufacturing process was immature, and the impurities such as ferrous ions in the raw materials could not be removed, and the glass made was more or less green.

2. Storage needs: Putting beer in green glass bottles can reduce direct sunlight, delay the taste of beer, and store it for a longer time.

Beer beer is an alcoholic beverage made from malt and barley malt as the main raw materials, with hops, liquid gelatinization and saccharification, and then liquid fermentation. Beer is low in alcohol and contains carbon dioxide, a variety of amino acids, vitamins, low molecular sugars, inorganic salts, and various enzymes. Among them, low-molecular-weight sugars and amino acids are easily digested and absorbed, and a lot of heat energy is produced in the body, so beer is often called "liquid bread".

1L12°BX produces 3,344 kJ of beer, which is equivalent to the calories produced by 3 5 eggs or 210 g of bread, and a light laborer can get one-third of the calories needed if he can drink 1L of beer a day.

Beer is served in green or brown bottles, why is that? Why are beer bottles green?

On the other hand, the use of green beer bottles is mainly to make people feel a relaxed and harmonious atmosphere, but also to shade the light well, reduce photosynthesis, so as to maintain the quality of beer, beer is particularly sensitive to sunlight. People will find that the impurities contained in the ferrous ions in the beer will react with the sunlight and make the beer taste worse, so people want to put the beer into a dark green or coffee-colored bottle, which can effectively block the sunlight, and the beer is packed into a green or coffee bottle, in addition to the beauty, in fact, there is also a lot of helplessness, although it is not difficult to solve the problem of ferrous ions today, but the use of beer bottles of this color has become a tradition.

Beer has a very long history, but it wasn't very long to put beer in glass bottles, around the mid-19th century. At that time, there were no special beer bottles, and wine bottles were more likely to be used. At this time, there may be more green bottles, and you should know that the color of the glass in that year depends on the manufacturing process a lot, and it is not just the color you want.

So, by the end of the 19th century, when there were special beer bottles, the tradition of green bottles was preserved.

Until the 1930s. It has been found that if you put beer in a brown bottle, you can make it taste better when it has been left out for a while. The reason is that it was discovered later that light can promote the reaction of alpha acid and sulfide in beer, making the taste very bad, and using brown bottles can prevent this reaction from happening, and the taste is better.

As a result, there is an increase in the use of brown bottles of beer.

After World War II, there was a time when there were not enough brown bottles in Europe, so some of Europe's better brands of beer reverted to green bottles. Because these beers are indeed of good quality, green bottle beer has become synonymous with high-quality wine tasting for a while, so more manufacturers have followed suit and used green bottles. At this time, with the popularization of refrigerators and the advancement of sealing technology, the necessity of using brown bottles has basically disappeared, and it will not bring better quality than other color bottles.

However, an old brand of beer will not easily change the packaging significantly, at most in the glass processing technology to make the color more pure and bright or whatever, a mature brand packaging color of a large change should be rare, so, brown and green are still the mainstream of beer packaging.