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Why does drinking coffee have aftertaste? The difference between Hui Gan and Yu Yun What is aftertaste

Published: 2026-06-29 Author:

Last Updated: 2026/06/29, In the process of tasting coffee, we will first end by smelling the aroma, then tasting the flavor and taste of the coffee, and finally feeling the aftertaste of the coffee. We can easily understand and intuitively feel the aroma and flavor of coffee by smelling and tasting coffee, but what is the aftertaste? Aftertaste, called "aftertas" in English

In the process of tasting coffee, we will first end by smelling the aroma, then tasting the flavor and taste of the coffee, and finally feeling the aftertaste of the coffee. We can easily understand and intuitively feel the aroma and flavor of coffee by smelling and tasting coffee, but what is the aftertaste?

Aftertaste is called "aftertaste" in English. Compared with the feeling we experience when tasting coffee, the aftertaste seems a bit illusory. In layman's terms, it is the taste and aroma that the coffee returns to the mouth and nasal cavities after drinking it.

To give a very simple example, when eating durian, you can taste the aroma and tempting taste of durian, but for a long time after eating, you can still feel the flavor of durian in your mouth. It is easy to understand if the above "durian" is replaced by "coffee".

Why does drinking coffee have aftertaste?

A large part of the aftertaste of coffee comes from the "capture" of the aroma of coffee by the smell behind the nose. There are many oil-soluble aromatic molecules in coffee that are insoluble in water. After drinking coffee, some of the oil in the coffee will remain in the mouth. As the oil disintegrates, the aroma substances will evaporate. The aroma substances emitted reach the nasal cavity from the nasopharynx connection, thereby smelling out the lingering aroma.

Some customers on Front Street like to drink espresso very much because it contains about 1/3 of the rich fat. While providing a full taste, it also exudes a caramel-like aftertaste, giving people endless aftertaste.

But for most people, the taste of Italian concentrated is quite strong, so it is more practical to feel the aftertaste by making single coffee by hand. The following three coffee beans are introduced on Qianjie, which can help novices better practice how to taste the aftertaste.

1. Coffee beans with sweet and sour taste + almond and fruity aftertaste recommended: Qianjie. Greek claw in Colombia

Qianjie Xizhao, produced in the boundary estate in Colombia, uses a dual anaerobic sun treatment method. When brewed, the flavor will show a mouthful of fragrant passion fruits, grapes, as well as sweet preserved fruit and sour fruit. After swallowing, it will leave an almond-like aftertaste in the mouth, so it has successfully attracted many fans to buy it back.

2. Balanced taste + coffee beans with cocoa aftertaste recommended: Qianjie. Huanghouzhuang Park

Queen's Estate on Front Street is produced in Brazil. The variety belongs to the relatively rare yellow bourbon, so it has a strong creamy nut flavor, accompanied by the sweetness of sugarcane. As the temperature drops, you can drink a touch of berry fruit acid and the tail rhyme. There will be the aroma of cocoa and caramel lingering in the throat.

3. Sweet and sour taste + coffee beans with the aftertaste of Tieguanyin tea recommended: Qianjie. Poquet Grissummer

Everyone knows that Rose Summer has outstanding floral and fruity notes, but careful tasting will reveal that Rose Summer from different origins can have completely different flavors, and Panama Rose Summer is the most famous "leader." Qianjie Poquet rose summer exudes the rich white flower fragrance and the flavors of melon, citrus and honey. The entrance has a bright, light and sweet taste. The clear and sweet aftertaste makes Qianjie immediately think of the feeling of drinking Tieguanyin tea.

What is the aftertaste of good coffee?

The evaluation of aftertaste is divided into two aspects, namely duration and flavor.

First of all, the aftertaste will also be divided into good and bad aftertaste, and the good aftertaste will remain for a long time. For example, the Italian espresso made from Qianjie black cocoa has a caramel aroma under ideal extraction, which can last for several minutes. The bad aftertaste may be expressed as bitter, over-fermented and rotten aroma, and the bitter taste will stick to the tongue for a long time.

For lighter drip coffee, the aftertaste of lightly roasted coffee beans does not last as long as espresso, and may only be as short as tens of seconds. A good aftertaste will be expressed as light flower fragrance, tea feeling, honey, moderate fermentation feeling, citrus peel, etc. The bad aftertaste will show dryness, a distinctive woody smell, or a disgusting discomfort.

On the other hand, coffee beans with a medium to deep roasting degree will quickly dissipate their bitterness in the mouth, showing aftertastes such as cocoa and caramel.

FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou China, selling freshly roasted beans from its own farm in Yunnan as well as dozens of carefully selected single-origin beans from around the world for both pour-over and espresso. The products deliver consistently excellent quality and great value, with shipping within 24 hours. Guangzhou’s FrontStreet Coffee shop is recommended by many coffee lovers, and the beans are now available online at the Tmall 。