In the process of tasting wine, we slowly came into contact with professional terms such as tannins, three types of aroma, and of course, there is an inevitable "aftertaste". As one of the important standards to measure the quality of wine, the aftertaste has been repeatedly mentioned in the introduction of wine and the tasting words of wine critics. So, what is aftertaste? What is its measure? How can we better feel the aftertaste when tasting?
　　
1. What is aftertaste?
　　
Aftertaste, also known as aftertaste, aftertaste and ending, is often represented by three words "aftertaste", "finish" and "length" in English. It refers to the taste left in the mouth after drinking or spitting out wine.
　　
2. What are the criteria for measuring the aftertaste?
　　
Theoretically, all wines have aftertaste. However, some aftertaste is impressive, which can sublimate the taste of wine again; And some aftertaste is not satisfactory. The performance of the aftertaste can usually be considered from the following two aspects:
　　
① Pleasant aftertaste: just as delicious food makes people linger, a high-quality wine should also have a rich and delicious aftertaste, so that the tasting process is always pleasant. Therefore, the degree of flavor pleasure is a critical measure of the aftertaste. Generally speaking, a pleasant aftertaste does not refer to a specific object. It includes not only the fruity, floral and spice flavors in the liquor at the time of entry, but also the unique aroma that does not appear in the wine tasting process until the end. However, these flavors must be balanced; The bad aftertaste includes abrupt bitterness, astringency, etc.
　　
② Length of aftertaste: the duration of aftertaste (provided that it is pleasant aftertaste) is an important factor in evaluating the quality of wine, and also has a great impact on the drinking experience. Generally speaking, wine with a long aftertaste has a complex sense of structure and hierarchy, and its quality is excellent; The wine with fast aroma dissipation lacks complexity and its overall style is relatively single. As for how long it can last for a long time, there is no fixed standard in the wine industry. The aftertaste of high-quality wines is usually more than 15 seconds, and the aftertaste of some top-grade wines can last as long as 1 minute.
　　
3. How to better feel the aftertaste?
　　
① Before tasting, keep your mouth clean and ensure that there is no residual aroma of cigarettes, coffee, gum, toothpaste, etc. to avoid disturbing the judgment of taste.
　　
② Take a sip of wine and let it spin slightly in your mouth like gargling, so that the liquor can contact all parts of your mouth (you can also breathe in a small amount of air when drinking, so that the liquor in your mouth will release more flavor in the process of contact with oxygen), and then carefully experience the flavor and style of the liquor. Then, swallow or spit out the liquor, and carefully feel the change and length of the aftertaste.
　　
③ Prepare the tasting form in advance. After swallowing or spitting out the liquor, carefully record the flavor still lingering in the mouth and its duration, and finally make an assessment.
　　
In general, the aftertaste is one of the important indicators to evaluate the quality of wine, and it is also a very important part in our learning and tasting of wine. Learning to feel the aftertaste is absolutely beneficial for us to understand wine critics' wine reviews and improve wine tasting ability.

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