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Why does the current beer gradually cancel the packaging of aluminum foil sealed at the bottle mouth?

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early bottled beer always had a layer of aluminum foil at the seal. This layer of aluminum foil wrapped the bottle cap and bottleneck. What’s the use of this layer of aluminum foil? Why is there no aluminum foil on the bottled beer now? Knowledgeable people said that the main function of this layer of aluminum foil paper is to seal, so as to prevent air from entering the bottle, and the beer inside will not deteriorate due to oxidation

the reason why bottled beer doesn’t have this layer of aluminum foil is that aluminum foil can block the light. If ultraviolet rays don’t shine in, it will make beer produce a “sunlight flavor” and affect the taste of beer. Therefore, aluminum foil is gone. For those who are not knowledgeable, these two explanations are actually very reasonable, but this is not a positive solution. Beer contains gas, which will only leak out and not into the air. From aluminum foil paper, if it is to prevent ultraviolet rays, why not wrap the whole screen? There are many questions

in fact, the color of the beer bottle itself is a little heavy and can block ultraviolet rays. There is no need to wrap an additional layer of aluminum foil. What is its real purpose? In fact, in the earliest beer, the bottle sealing method was the same as that of champagne. The mouth of champagne was sealed with cork and the top was fastened with iron wire, but it didn’t look good, so someone thought of wrapping the mouth of the bottle with gold foil paper, which made it look much taller

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with the continuous development, champagne is also gradually popularized. The gold foil at the mouth of champagne bottle is also gradually replaced by aluminum foil. After beer, the sealing method of champagne is also extended. Therefore, in the early beer, the bottle mouth is wrapped with aluminum foil, but the cost increases a lot. In order to reduce the cost, people also invented the beer bottle cap, The 21 serrations on the bottle cap can just achieve the best sealing effect. With the continuous progress of the technology, the aluminum foil paper is also gradually cancelled, so now most beer do not see this layer of aluminum foil paper

it’s hot summer and it’s the season to drink beer. Especially in the evening, it is a kind of enjoyment to drink a glass of iced beer to eliminate the irritability and sultry of the day. With the development and progress, the packaging of beer has also undergone many changes. Some older people may remember that beer bottles were wrapped with a layer of “aluminum foil” long ago, but why not now? Finished reading the knowledge& nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; In the past, the beer bottle mouth was wrapped with a layer of aluminum foil. Now it is very rare. So why? Why did you pack it before? Some say it’s to prevent air leakage, others say it’s to avoid light, and others say it’s for hygiene. The statement about air leakage is completely wrong, because the pressure in the beer bottle is high, and air leakage is also outward

so why wrap this layer of aluminum foil? This should be mentioned when beer was first produced. At that time, the packaging of beer was very similar to that of red wine, which was sealed with oak plugs. However, unlike red wine, beer contains a lot of gas, and the oak plug is pushed out over time. So just outside the oak plug, fix it with metal

although this solves the problem, on the whole, the packaging at the bottle mouth is very ugly, so it imitates the appearance of red wine. A layer of gold foil is wrapped at the beer bottle mouth to cover up the disadvantage of ugly sealing, which looks very beautiful. However, the disadvantage of this is also obvious, that is, the cost has increased a lot, which is not conducive to the positioning and promotion of beer, but there is no better method

later, this kind of packaging continued until the end of the 19th century. An Englishman invented metal bottle cap sealing, which completely bid farewell to the heavy oak plug and metal buckle. The gold foil paper has also become a cheaper aluminum foil paper. At this time, its function is not only for beauty, but also to prevent the bottle cap from rusting, but also to print beer advertisements on the aluminum foil paper, which can be said to kill three birds with one stone

later, the process was improved, the beer bottle cap would not rust, and beer became very popular, so the aluminum foil on the bottle mouth was slowly removed. At present, only a few bottles have aluminum foil at the mouth, and its role has been “transformed” into light avoidance, hygiene, beauty and advertising. It can be said that a little chicken ribs are dispensable

because the current packaging technology is better than sealing with aluminum foil paper

the current sealing technology is several times stronger than before, so there is no need for this high-cost method.

because the method of improving the shelf life has been improved, the previous one is not convenient to drink and is not environmentally friendly

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