Why does coffee taste sour? Why is the coffee you drink sour?

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About coffee.

The word "Coffee" comes from a small town in Ethiopia called kaffa, and in Greek "Kaweh" means "strength and passion".

Tea, coffee and cocoa are called the three major drinks in the world.

Coffee tree is a small evergreen tree of Rubiaceae, which is found in the tropics and subtropics. Leaves long ovate, flowers white, bearing crimson berries. There are small fruit, medium fruit, big fruit coffee and so on. Originated in Ethiopia.

Daily coffee is made from coffee beans combined with a variety of cooking utensils, and coffee beans refer to the nuts in the fruit of a coffee tree, which are then roasted with appropriate roasting methods.

Why coffee tastes sour:

Coffee is a fascinating crop. When the seeds enter the soil, they slowly sprout, grow leaves, blossom and bear fruit. It absorbs nourishment from the soil, as well as sunlight, air and water. It grows into a rich fruit with a cherry-like appearance. Coffee itself is the fruit of a kind of fruit, although it has been baked at high temperature, but under the strong aroma, it is still rich in the taste of fruit, with the sour, sweet and fragrant flavor of fruit.

The acidity of coffee is affected by the variety and quality of raw coffee beans, but it is also related to harvest, storage time, baking and brewing, and bitterness constitutes the two major factors that affect the quality and taste of coffee. In terms of variety, the original Arabica is more sour than the original Robusta, while in terms of elevation, coffee grown in the highlands is sour than that in the lowlands, and then the beans that have just been harvested are sour than those that have been left for a while after harvest. If the freshly harvested beans with good quality and high moisture content can produce moderate sour taste through proper heating, it can make the coffee taste better and make people feel more deep.

The sour taste of coffee describes a lively, bright flavor, which is somewhat similar to that used in wine tasting. If the coffee bean lacks acidity, it is equal to lose vitality, taste empty and boring, without layer depth. Acidity has many different characteristics, such as coffee beans from Yemen and Kenya, which have an impressive fruity aroma and a red wine-like texture. If this cup of coffee in your hand has such a sour taste, it can even make you have some pleasant associations.