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Why do beer bottles use glass bottles instead of plastic bottles?
Why do beer bottles use glass bottles instead of plastic bottles? Many people may have such doubts, because most of the beverage bottles are plastic, but most of the beer is in glass bottles, and of course there are cans, but the only ones that do not have plastic bottles. So what are the reasons?
1. Glass bottles have the advantages of good gas barrier properties, long storage life, good transparency, and easy recycling. Beer is extremely sensitive to light and oxygen, and the shelf life usually reaches 120 days. The oxygen permeability of beer bottles is required to be within 120 days. It is not more than 1×10-6g, and the loss of CO2 is not more than 5%, which is 2~5 times of the barrier property of pure PET bottle，glasscookware.
2. One of the important raw materials in beer is hops, which give beer a special bitter taste. The ingredients in hops are light-sensitive and decompose under the action of ultraviolet rays in sunlight, resulting in an unpleasant "sunshine odor". Colored glass bottles can reduce this reaction to some extent. However, the effect of the brown bottle is better than that of the green one. There are colorless and transparent bottles of beer on the market, and the hops added in the production are processed. Ordinary window glass, oil bottle, wine bottle, etc. have a faint green color, which is the green color caused by the impurity of divalent iron ions in the raw materials for making glass. Some medicine bottles, beer bottles, and soy sauce bottles are brownish-yellow, which is still caused by iron impurities, but not divalent iron ions, but trivalent iron ions.
3. Beer contains organic ingredients such as alcohol, and the plastic in plastic bottles belongs to organic substances. These organic substances are harmful to the human body. According to the principle of detailed compatibility, these organic substances will dissolve in beer. When people drink such beer, they will be toxic at the same time. The organic matter is ingested into the body, thereby causing harm to the human body, so beer is not packed in plastic bottles.
1. Glass bottles have the advantages of good gas barrier properties, long storage life, good transparency, and easy recycling. Beer is extremely sensitive to light and oxygen, and the shelf life usually reaches 120 days. The oxygen permeability of beer bottles is required to be within 120 days. It is not more than 1×10-6g, and the loss of CO2 is not more than 5%, which is 2~5 times of the barrier property of pure PET bottle，glasscookware.
2. One of the important raw materials in beer is hops, which give beer a special bitter taste. The ingredients in hops are light-sensitive and decompose under the action of ultraviolet rays in sunlight, resulting in an unpleasant "sunshine odor". Colored glass bottles can reduce this reaction to some extent. However, the effect of the brown bottle is better than that of the green one. There are colorless and transparent bottles of beer on the market, and the hops added in the production are processed. Ordinary window glass, oil bottle, wine bottle, etc. have a faint green color, which is the green color caused by the impurity of divalent iron ions in the raw materials for making glass. Some medicine bottles, beer bottles, and soy sauce bottles are brownish-yellow, which is still caused by iron impurities, but not divalent iron ions, but trivalent iron ions.
3. Beer contains organic ingredients such as alcohol, and the plastic in plastic bottles belongs to organic substances. These organic substances are harmful to the human body. According to the principle of detailed compatibility, these organic substances will dissolve in beer. When people drink such beer, they will be toxic at the same time. The organic matter is ingested into the body, thereby causing harm to the human body, so beer is not packed in plastic bottles.
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