1, the sugar content is different: semi-dry red wine: residual sugar content in 4- 12g / L. Dry red wine residual sugar content does not exceed 4g / L.

2, the characteristics of the different: semi-dry red wine when drinking a sense of slight sweetness. The grape juice in the wine is 50%, and the other half can be added with sugar, alcohol, water and other auxiliary materials. Full-dry red wine can not be perceived as sweet in the mouth, but only sour and refreshing feeling.

The people who should not drink red wine

Arteriosclerosis: Although wine can prevent arteriosclerosis, but for people who already have and blood vessel stenosis, if you drink too much red wine, one is not conducive to the blood supply function, and the second is that the alcohol itself will elevate the blood fat and promote arteriosclerosis.

Patients with gastric problems: although wine helps protect the stomach and help digestion, but there are gastrointestinal diseases, especially patients with serious gastric problems, is not suitable for drinking wine, otherwise it is easy to gastric stimulation and aggravate the condition.

The above references? People's Daily Online - Drinking Wine, Wine Taboos, Baidu Encyclopedia - Dry Wine, Baidu Encyclopedia - Semi-Dry Wine