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If it's a foreign wine, that's normal, as long as you shake the sediment and the bottom of the bottle doesn't solidify, which means that the sediment can move with the wine, it's fine.
Different vintage versions of this wine, and brandy is made from grapes, like champagne and wine, it sometimes has its own impurities, and some of the grooves under the bottle are used to precipitate impurities.
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The tartaric acid in the wine.
When stored for a long time, tartar crystals will form, forming crystalline precipitates like salt grains, which are also normal, but not for a day.
Aged red wine because of the pigments and tannins.
It is normal to combine and produce precipitation, which is also a symbol of old wine, which is generally granular or rust-like precipitation. This sediment is mainly in the aging process, tannins.
When combined with the pigments, there is no need to worry about anything wrong, sometimes it is a testament to the vintage of the red wine.
The most common remaining sediment in a wine bottle is tartar, which is the result of the crystallization of tartaric acid in the wine when exposed to lower temperatures. These crystals precipitate slowly at lower temperatures, but do not dissolve as the temperature rises, so they are easily retained. More colorful under the microscope.
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The wine has sediment at the bottom and can be drunk normally. Once the wine has reached the point of fermentation, the skins float on top, the color changes from dark to light, and the seeds and most of the flesh residue settle at the bottom of the bottle, at which point the residues should be separated from the wine.
The specific method is to suck out the wine in the middle with a siphon, then put the residue into gauze, squeeze it by hand from light to heavy, and then twist it like a garment, so that the wine in the residue is basically clean.
Finally, all the liquor is mixed together and placed in jars to continue fermentation. At this time, the wine is very cloudy, you don't have to mind, the wine at this time is called Yuan wine. There is a layer of sediment at the bottom, which is the "corpse" and impurities of yeast after completing its historical mission, and this layer is used to make yeast paste industrially.
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It's normal for red wine to have sediment, but if it has a strange smell, you can't drink it. Generally, the color of old wine will become lighter and there is precipitation, as long as it does not deteriorate, it will not affect the continued drinking. If the taste is not alcoholic, but has the taste of vinegar, rotten vegetable leaves, or even rancidity, it is spoiled and can no longer be drunk.
Generally, the normal precipitate is tartrate, the solubility of tartaric acid in alcohol is lower than that in grape juice, and during the brewing and storage process, it will combine with potassium to form potassium bitartrate, which is a common precipitation.
Although wine helps to protect the stomach and help digestion, people with gastrointestinal diseases should not drink wine, otherwise it can easily aggravate the condition.
For people with stenosis of blood vessels, if you drink too much red wine, it is not conducive to blood supply function, and it will also increase blood lipid burning and promote arteriosclerosis.
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I can drink it. There are usually two types of sediment in red wine. The first is caused by the lack of clean filtration during late fermentation, which is usually fruity. The second is that red wine contains a certain amount of tartaric acid crystals, which is mainly caused by the chemical reaction and precipitation of unstable substances in red wine, but in either case, it has no effect on the quality of red wine and can be continued to drink.
Further information: Red-wine is a type of wine that comes with it, and does not necessarily refer to red wine specifically. The composition of red wine is quite simple, it is a fruit wine made by natural fermentation, and the most abundant content is grape juice.
There are many ways to classify wine, but in terms of the color of the finished product, it can be divided into three categories: red wine, white wine and pink grape wine. Among them, red wine can be subdivided into dry red wine, semi-dry red wine, semi-sweet red wine and sweet red wine; White wine is subdivided into dry white wine, semi-dry white wine, semi-sweet white wine and sweet white wine; Pink wine is also called rosé wine and rosé wine.
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Red wine has sediment and can be drunk.
It is normal for sediment to appear at the bottom of red wine. There are two reasons for sedimentation: one is that the residue precipitation of red wine is not completely formed during filtration, including distiller's grains, yeast proteins and grape skins; The second reason is that tartaric acid in grapes will form tartarite crystals at low temperatures, which is an insoluble precipitate.
The sediment in red wine does not affect drinking. There may be a slight deduction of points in appearance, but in fact, many high-end red wines will have tartaric acid crystals, and wine connoisseurs will know that this kind of red wine with precipitation is a good wine.
Although the sediment in red wine affects the sensory of red wine, it plays an important role in enhancing the aroma of red wine. In order to retain the special original aroma of the red wine, some wineries only filter the rough wine line, and foreigners even use the sediment in the red wine with bread, that is, because of the strong aroma of these sediments.
How long can you not drink the red wine that has been opened
Typical white wines should be consumed as soon as possible within 24-36 hours, and good and particularly excellent white wines can only last for an additional 24 hours. The general form of red wine can last for about 72 hours, but some special red wines can last for more than a week, although it has not deteriorated, but it will more or less change the smell of the wine, once the wine changes its taste.
The freshness is gone, and it always feels less pleasant to drink than the freshly opened wine, even if it is put back in the thermostat, it still does not help to reverse the gradual decay, but this situation is not absolute, and there will be exceptions.
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