Why does wine have an expiration date?

Red wine is not always better the older it is. Vintage is a concept that indicates the quality of the wine of the year. There are also fresh and aged red wines, and the fresh type is generally fruity, such as Beaujolais that can be marketed in the same year.

The aging type is generally rich and mellow, and the best drinking period varies depending on the wine, generally between 5 and 10 years. After 15 years, the wine doesn't taste good.

The "expiration date" is literally the period during which the quality of the item can be guaranteed. As we all know, wine is alive, and good wine also has a process from youth, to maturity, to peak, and then to decline in the process of aging. In principle, wine is best consumed at its peak.

However, even in its declining period, the change of wine is gradual, and it cannot be absolutely said that it cannot be drunk, but its quality is not good, or the taste is unpalatable, and people naturally do not want to drink it anymore. The so-called "deterioration" is more often due to improper storage, which causes the wine to be rough or become sour and bitter with a peculiar smell, or because of the oaky phenomenon. So, what is the "shelf life", the peak period?

Or is it a point in the waning period?

In addition, even if it is theoretically stipulated that the time between bottling and the time when a wine is about to turn into a decline period is the "shelf life", it is not easy to determine this time. This is because the timing depends on many factors: vintage, grape variety, winemaking process, origin, producer, storage conditions, etc.

Although there are certain rules to follow (see the previous article), it is still difficult to quantify. When one of these factors changes, the result will be different, and often the result of this change can only be finalized and foreseen through actual tasting. In other words, each wine, different vintage, depends on the actual situation.

Obviously, it doesn't make sense to prescribe 10 or 20 or 50 years for a certain wine. Just think, Chateau D in 1900'Yquem is still perfect, how can this "shelf life" be determined?

Of course, if there is no so-called "shelf life" regulation, it is indeed a relatively difficult problem for the average consumer with relatively little knowledge of wine to judge and understand. It also brings inconvenience to its selection. However, if a "shelf life" is imposed, it will also be misleading.

In traditional wine countries such as France, there is no law that limits the so-called "shelf life" of wine, but consumers will not have doubts because they have the relevant knowledge and can make the necessary judgments. It seems that in order for the Chinese people to understand that there is no exact "shelf life" for wine, it is still necessary for people to know more about wine and master relevant knowledge.

There is no expiration date, and drinking it will cause diarrhea.

Wine has no expiration date. Wine will be marked with a shelf life, because the relevant regulations of our country must be marked with a shelf life, so the wine will be marked with a shelf life, but the wine actually has no shelf life, expired wine is not equal to spoiled wine, it can still be drunk, but the flavor may have changed.

Wine is a kind of fruit wine made from grapes, which is an alcoholic beverage produced in France, Spain and so on.

Due to the different conditions of grape cultivation and wine production technology, wine has different product styles, and can be divided into white wine, red wine, and rosé wine according to the color of the wine.

If wine is to be stored for a long time, it is usually necessary to be flat, constant temperature, constant humidity, ventilation, protection from light, and shock absorption, and the wine that has been transported for a long distance must be left for more than two days before returning to normal quality.

, and its shelf life with alcohol content.

related, not related to the grape variety. Generally speaking, wines with an alcohol content of around 13% can theoretically be stored for a long time. Normally, wines with an alcohol content of about 13% can be stored for more than ten or even twenty years, and some high-quality wines of big brands can be stored for a longer time.

Foreign wines generally do not have a shelf life, but according to relevant regulations, the shelf life of wines sold on the market, whether imported or domestic, is generally marked with 10 12 years.

Wine has no expiration date, wine only has a drinking period. It is the period when it is suitable for drinking. The higher the quality of the wine, the longer the shelf life.

Wine also has a shelf life, generally about 10 years, but if the storage environment is good, stored in a cool, ventilated and dry place, and not affected by bad factors such as high temperature and humidity, then it can be extended to 15 years or even longer without any problem, and it will not affect the taste and texture of drinking, and there is no harm to health.

Wine also has a shelf life, generally not more than five years, so the wine should be drunk as soon as possible after buying, because the preservation of wine is also required, and it cannot be stored in a particularly high temperature environment.

Wine is a kind of fruit wine made from grapes as raw materials and fermented to make wine, which is the world's largest and most widely used monosaccharide brewing wine.

Red wine has no expiration date.

If it is not opened, it will generally not expire, but if it is opened, it should be consumed within 3-5 days, otherwise it may lead to bacterial growth.

How is wine preserved?

1. Less suitable temperature change: The best storage temperature of red wine is about 15 degrees, but in China, it is also very difficult to maintain 15 degrees all year round. Luckily, a slightly higher temperature has little effect on the alcohol, and the overall temperature can be controlled below 20.

2. Avoid light and hidden places: Wine storage needs to be protected from light, especially when white wine and rosé wine are commonly used in transparent wine bottles, and more attention should be paid to this problem. When wine is exposed to sunlight for a long time, it undergoes a reduction reaction and photooxidation.

3. Keep the environment where the wine is stored clean and ventilated: Hidden smells in the environment can also affect the taste of the wine. The wine is not completely sealed until the bottle is opened, and the ventilation effect of the cork can bring odors from the air into the bottle.

Therefore, it is very important to maintain ventilation and a clean environment.

Wine has no expiration date.

Wine will be marked with a shelf life, because the relevant regulations of our country must be marked with a shelf life, so the wine will be marked with a shelf life, but the wine actually has no shelf life, expired wine is not equal to spoiled wine, it can still be drunk, but the flavor may have changed.

Factors influencing the shelf life of wine

1. Temperature. Temperature is the most important factor in determining the shelf life of wine, generally speaking, the best storage temperature of Luxiang with wine is about 11-13 degrees, the temperature should be kept stable, and the changing temperature will greatly affect the quality of the wine.

2. Humidity. The effect of humidity on wine mainly comes from cork, generally speaking, cork stoppers with humidity between 60 and 70% are more suitable, if the temperature is too low, dry cork will affect the sealing effect, allowing air to come into contact with the wine from the voids around the edges, accelerating the oxidation of the wine and leading to deterioration. Cork stoppers with too high humidity are prone to mould and affect the quality of the wine.

3. Light. Light can damage the wine a lot, and the wine that has been exposed to the sun for a long time is rough and loses the value of tasting and collecting, so if you want to keep the wine for a long time, you should try to put it in a cool place.

Fourth, search for vibration.

The damage to wine caused by vibrations is purely physical, the wine is bottled, and its change is a slow process, and the vibrations will accelerate the ripening of the wine and make the wine rough. Therefore, it should be placed away from vibration and should not be moved too often.

Homemade wine has no expiration date, but it has an optimal drinking date. The best drinking period for different wines varies, like white wine and rosé wine, the best drinking period is 1 to 3 years. Red wine is 3 years later, but the older the wine, the better.

The main reason is that wine is not like liquor or other distilled spirits such as gin, and the homemade wine is not very well sealed, so it is not easy to drink for a long time, and it is generally best to drink it within three years. Leaving it for a long time will not only affect the taste, but also harm the body.

Yes, 2 to 10 years.

Wine is a kind of fruit wine made from grapes, the shelf life of wine in China is generally ten years, while in foreign countries, wine generally does not have a shelf life, only the drinking period, according to the quality of the wine, the drinking period ranges from one or two years to decades. If you want to store the wine in a cork bottle for a long time, it is best to achieve a flat place, constant temperature, constant humidity sock front core, ventilation, protection from light, shock absorption, while the effect of rubber stoppers and screw caps in wine storage is not as good as that of cork bottles. Good wines are drunk in the year, and many wines in the production area do not indicate the year on them, so they are generally stored for four years.

The shelf life of average wines is between 2 and 10 years, and the higher quality wines have no shelf life, but the more they are preserved, the more fragrant they become. In China, there are clear regulations on wine or other alcoholic beverages with an alcohol content of more than 10 degrees.

Most wines, like other foods, have this or a wide shelf life, usually 1-20 years, and their length is related to the quality of the grapes and the production process. Wine is stored for a long time, and its nutrition and taste will deteriorate.

The drinking period of wine is mostly determined by the tannin content and acidity of the wine, most wines are generally less than 5 years old, only a few wines can be drunk between five and ten years, and very few can reach more than 10 years.

For low tannins and low acidity wines, the shelf life is generally shorter, about one or two years, because their fruity flavor will dissipate, and a long time will not only not be beneficial but also affect the taste, while for high tannins and high acid wines, it is necessary to leave it for more than 10 years, so that the taste becomes round and comfortable, and the aroma in the juice can be fully released.

Precautions for the preservation of red wine.

The first is to ensure constant temperature storage, the ideal storage temperature of 10-15 is the best for wine, too cold will make it difficult for the wine to ferment and too hot and easy to oxidize.

The second is constant humidity preservation: the ideal storage humidity is between 65% and 76%, too dry air is more likely to enter the bottle, and too wet corks are easy to mold and bacteria.

Third, it should be stored in the dark, as the light group is easy to guide the wine to deteriorate. The fourth is to ensure that the ventilation of the storage place and the surrounding environment are free of peculiar smells, so that the wine can be more tasteful, so it is necessary to pay attention to the surrounding environment of the wine.

The above content refers to People's Daily Online - Can red wine that has been more than ten years old still be drunk? Precautions are required for wine storage.

People's Daily Online - Wine also has a shelf life and should be drunk as soon as possible after sealing.

The wine itself has no shelf life, and the shelf life on the wine label is because our country stipulates that the shelf life must be marked, and the manufacturers are marked with a shelf life of 2 to 10 years, and the wine on the market is generally the best to drink in the forest after 1 or 2 years after it is put on the shelf.

Classification of wines:

1. White wine. It is made by separating and fermenting white grapes or grapes with red skin and white flesh. The color of the wine is yellowish with greenish, similar to colorless or light yellow, straw yellow, golden yellow. Colors such as dark yellow, earthy yellow, brown yellow or brownish yellow do not meet the color requirements of white wine.

2. Red wine. It is made by fermenting grapes with red skins and white flesh or red skin and juice. The natural color of the wine is ruby red, ruby red, purple red or garnet red, and any yellow, tan or earthy brown color does not meet the color requirements of red wines.

3. Rosé wine. Made by fermenting with colored red grapes with skins or fermenting them separately. The colour of the wine is pale red, peach, orange or rose. Any color that is too dark or too light does not meet the requirements of rosé wine.

This type of wine has a freshness and a distinctly fruity aroma on the flavor of spring pants, and the tannin content should not be too high. Varieties such as rosé grapes, Pinot Noir, Carignans, French blue and others are suitable for making rosé wines. In addition, red and white wines can also be regarded as rosé wines if blended in a certain proportion.