There are differences between the grapes used for winemaking and the grapes commonly eaten. The main differences are as follows:

1. The picking time is different

The picking time of wine grapes is longer than that of ordinary grapes. Table grapes are high. If picked too early, the grapes will not be ripe enough and contain insufficient sugar and phenolic substances; conversely, if picked too late, they will be overripe, resulting in too high sugar and too low acidity, which will affect the quality of the wine. Table grapes are usually harvested earlier than the ripening stage to maintain the color and flavor of the fruit.

2. Different sugar contents

When wine grapes are harvested, the sugar content is about 22%-30%, while when table grapes are harvested, the sugar content is only 10%-15%.

3. Different flavors

The flavor of wine grapes is relatively strong and concentrated. Its high sugar content and acidity are the key to making wine. Most of the sugar is converted into alcohol, and acidity plays an important role in maintaining the overall flavor balance of the wine. Although table grapes are not as high in sugar and acid as wine grapes, their skins are thin and their flesh is plump. They taste juicy and sweet with a distinct fruit flavor.

4. Different cultivation methods

In order to produce wine grapes with a condensed flavor, during the fruit growth process, the grape vines and grape bunches need to be strictly pruned according to the needs of the winemaker to reduce the yield. Improve the quality of wine grapes. The requirements for table grapes are not as high as those for wine grapes, as long as they grow well and taste good, so the yield of table grapes is usually higher than that of wine grapes.

Baidu Encyclopedia - Wine Grapes

Baidu Encyclopedia - Grapes