On the Side Effects of Tannins in Wine
Wine contains tannins. Although it is important for shaping the flavor and taste of wine, it also has some side effects, which cannot be ignored.

The first to bear the brunt, tannins may cause dryness in the mouth. When drinking, tannins combine with proteins in the mouth to generate precipitation, destroy oral lubrication, and feel dry. This dryness is too much, or it affects the drinking experience and causes the wine to lose its original pleasant taste. If the content of tannins in the wine you drink is too high, it will be like gravel grinding on the tongue in an instant, dry and hard to swallow. It is difficult to hide this discomfort if you indulge in other wonders of the wine set.

Furthermore, tannins may affect the digestive system. Excessive intake of tannins may stimulate the stomach. Tannins combine with proteins and minerals in the stomach, or affect nutrient absorption. Over time, it may cause gastrointestinal dysfunction. If you often drink wine with too much tannins, or feel faint gastrointestinal discomfort, there is a feeling of swelling and pain, which is caused by excessive tannins.

And the high content of tannins in the wine may affect the taste perception. Because of its astringent taste, it is easy to mask other flavors in the wine, such as fruity, floral and other subtle aromas. The drinker wants to taste the rich layers in the wine, but because of the strong tannins, only the astringency dominates, and other flavors are hidden but not visible, like a pearl in the dust, and the delicacy of the wine is difficult to see the whole picture.

Therefore, when making wine, the winemaker should weigh the tannin content, not only to preserve the structure and aging potential of the wine, but also to avoid many side effects caused by excessive tannin. Drinkers should also pay attention. According to their taste preferences and physical conditions, they can choose a wine with suitable tannins to enjoy drinking and avoid the disturbance of tannin side effects.