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As for the characteristics of wine bottles, most wine lovers can say: the red wine bottle is green, the white wine bottle is transparent, the capacity is 750 ml, and the bottom is grooved.

First look at the color of the wine bottle. As early as the 17th century, the color of wine bottles was green. This was limited by the bottle-making process at that time. Wine bottles contained many impurities, so the wine bottles appeared green. Later, it was discovered that dark green wine bottles helped protect the wine in the bottle from the influence of light and helped the wine age, so most wine bottles were made dark green. For white wine and rosé wine, they are generally packed in transparent wine bottles, hoping to show the color of white wine and rosé wine to consumers, which can give people a fresher feeling.

Secondly, the capacity of the wine bottle is composed of many factors. One of the reasons for this is still to start in the 17th century, when the bottle-making was done manually, relying on glass-blower to make it. Affected by the lung capacity of the bottle blower, the size of the wine bottle was between 600-800 ml at that time. The second reason is the birth of standard-sized oak barrels: At that time, the small oak barrels used for shipping were established as 225 liters. Therefore, in the 20th century, the European Union set the capacity of wine bottles at 750 ml. Such a small oak barrel was just enough. It can fill 300 bottles of wine and can hold 24 cases. Another reason is that some people think that 750ml can pour 15 glasses of 50ml wine, which is suitable for a family and a meal.

Although most wine bottles are 750ml, wine bottles of various capacities have now appeared.

Finally, it is about the groove at the bottom of the bottle. This feature is often mythological by many people, who believe that the deeper the groove at the bottom, the higher the quality of the wine. In fact, the depth of the groove at the bottom is not necessarily related to the quality of the wine. Some