How can you tell if a wine is good or bad without opening the bottle?

Vintage, personally, I think that vintage is very important; The second is the place of origin, to see if it is a more famous place of origin.

The bottle is tilted sideways at 45 degrees, and there is a layer of watery body at the junction between the wine and the glass wall, and in this water-like body and the wine, different colors can appear, blue and lilac are equal to 3 to 5 years old; Red brick color is equal to 5 to 6 years; Amber is equal to 8 to 10 years; The orange-red color indicates that it has expired.

1. Winery and brand.

To make a name for itself in the huge wine industry, it must rely on excellent quality and good marketing strategies, such as DBR (Lafite) and Penfolds (Penfolds) and other large international wine brands are typical examples.

2. Wine labels. There is a lot more information about the wine label, including its name, region, vintage, variety, grade, etc. With this basic information, you can roughly determine where a wine stands.

3. Aging method: When buying wine, you can check how long the oak barrel aging time of this wine is. The greater the ageing potential, the higher the quality of the wine.

4. See if the winery is marked with "Chateau": If several wines are of the same grade and production area, pay attention to whether the winery is marked with "Chateau" in front of the name. Generally, the label "chateau" indicates that the wine has its own vineyard and winemaking operation room, etc., and does not mark the name of any winery, indicating that the wine may be made from grapes purchased by large wine merchants, so the wine labeled "chateau" is usually of relatively higher quality.

There are still many ways to do it in modern society. Take out your phone, open wine-searcher or vivino, and check the ratings, reviews, and ** of the wine. wine-searcher's database brings together about 8 million wines from more than 80,000 wine merchants, and each wine will also have detailed information, such as awards, major wine critics and ratings, wine tastings, winery information, origin information, grape variety information, etc.

Oak stopper. The labels can be seen.

The first look at the packaging, the cardboard box used for good wine is neat and hard, the second look at the suit, the paper is white and fine, and the cardboard of fake wine is rough and the color is not coordinated.

You can put the wine under a fluorescent lamp and see if there is any cloudiness underneath the wine, or if its color changes a little.

Look at the color of the wine in a shiny place, and whether the bottle is clear and whether there is sediment, and if it is cloudy, it will definitely not work.

First, you can look at the winery and the brand. Second, you can look at the label of the wine. Thirdly, you can look at the vintage of the wine. Fourth, you can look at the score of the wine.

Look at the brand and label of the wine. The wine label is the business card of the wine, through which you can see the origin and year of the wine.

You can see its color and vintage. Look at the branding and vintage on the bottle. Check if there is any certification from the relevant association.

If you don't open the bottle, look at the cap. Wine caps are made of plastic, aluminum foil, and wax. Some are even a mix of plastic and aluminum foil.

Look at the year and where the wine was produced, the containers in which the wine is served and the materials used.

Turn the red wine bottle upside down, tilt it at a certain angle, face the sun or light to see if there is more sediment and residue at the bottom of the bottle, and use a small flashlight or mobile phone flashlight to develop it under the red wine bottle.

To identify the quality of wine, you need to see, smell and taste

If you don't open the bottle, you can only see it through the colored bottle, and such a result is purely misleading. There is no way to complete the task you have been told.

Method 1: Identify the appearance of the wine.

Due to the widespread use of advanced technology, most wineries have sterilized, clarified and stabilized their wines, so most of the wines on the market are clear and shiny. However, if there are fish that slip through the net, accidentally contaminated with bacteria or yeast, and in severe cases, such as metal contamination or unstable proteins, it is a problem in the winemaking process, and the wine will be cloudy.

Sometimes when you open the wine, you see the wine stopper sticking to the crystals, or after pouring the wine, you find that there are some crystal squares at the bottom of the wine glass, you don't need to worry too much, this is a very normal situation, it only reflects that there is more potassium or calcium in the wine. Red wine also has the opportunity to have crystals, but these crystals will adhere to phenolic, dye the wine color, and become phenolic polymers, that is, lees; Lees are especially common in wines that have been aged for a long time. In fact, these lees are not harmful to the human body, but they do not look clear and perfect, and they can be solved by simply changing the bottle.

It makes sense that sparkling wine has obvious bubbles, but if there are a lot of bubbles in a stillwine bottle, it is possible that the winery accidentally allowed yeast to invade the bottle, causing the wine to ferment again and the wine to change its taste. It should be noted that some liquors deliberately retain a small amount of carbon dioxide in the hope that the taste of the liquor will be fresher, and it is normal for these liquors to have a small amount of bubbles at the bottom of the glass.

Colour is a big hint of whether a wine is healthy or not, and if the wine is only 10 or 8 years old, the red wine is amber or orange, and the white wine is too golden and brown, this may mean that the wine may have oxidized unexpectedly (not for deliberately oxidized wines).

Method 2: Identify the smell of wine.

A normal glass of wine should have a pleasant aroma, generally young wines have obvious fruit or floral aromas, and those that have been in the factory for a longer time will change from fresh aromas to more mature and deep fruit aromas, such as dried fruits, dried flowers, etc., and some grapes will develop unique and interesting non-fruit aromas such as earth, leather, truffle, coffee, caramel, and nuts. However, please note that the Spanish finocherry is a fortified liquor with a non-dry smell, but a unique style full of olives, salted nuts, shrimp chips, dried pears and other special flavors.

There are two major causes of wine deterioration: oxidative deterioration and sulfur-related lesions.

Oxidized white wines, lacking freshness, are extremely bland and tasteless, with a faint brown or straw colour with a slight pungency.

Even if red wine is oxidized and decayed, it will not smell like oxidation and deterioration of white wine, but after drinking, it has a bitter and sweet taste, and exudes a special smell like caramel, and the appearance shows an abnormal red and orange color, and sometimes there is a sense of clarity that seems to be absent.

When the wine is damaged due to sulfur oxide, the smell is particularly strong and pungent, and after a deep inhalation, you can feel a noticeable stinging pain at the front of the nose, and it quickly infects the throat. If you have any doubts about the quality of the wine, you can use the palm of your hand to cover the rim of the glass, then vigorously shake the glass up and down, and when you open the palm of your hand, you can immediately inhale the smell that comes out of the glass.

The most direct way to identify whether the wine has deteriorated or deteriorated is to drink it in the mouth, whether it smells abnormal in the nasal passages, such as damp smell, rancid smell, followed by the tongue, the inside of the cheeks, the upper and lower cheeks, and the throat, whether it feels abnormal stinging and bitterness, or whether the effect of alcohol has masked everything, and at the same time it is mixed with a smell similar to chemical potions, these are all ways to identify.