Coffee review

Why the higher the altitude, the better the taste of coffee beans.

Published: 2024-11-08 Author: World Gafei
Last Updated: 2024/11/08, The grading of coffee beans, small producing areas, farms, and other grading systems that mark coffee producing areas around the world are not consistent, so you may see the following words SHB, AA+, Supremo, Extra-Fancy, round beans / adzuki beans on the coffee label, which are the grading names of coffee beans. Baked beans on the market sometimes mark the grading of individual coffee, but usually not.

The grading of coffee beans, small producing areas, farms, and other grading systems that mark coffee producing areas around the world are not consistent, so you may see the following words "SHB", "AA+", "Supremo", "Extra-Fancy", "round bean / adzuki bean" on the coffee label, which are the grading names of coffee beans. Baked beans on the market are sometimes marked with the grading of individual coffee, usually not.

The best coffee in Central and South America is graded on the basis of planting altitude. Beans above 4500 feet above sea level are marked "SHB". "AA+" is the highest grade of Kenyan coffee. Only batches with particularly excellent flavor and few defects are allowed to be marked "AA+", "AA" is the largest, "AB" is smaller, and "PB" is round beans. Colombia also uses the appearance size and defect rate of coffee beans as grading criteria, with "Supremo" indicating the largest particle. It is worth noting that the appearance size of coffee beans has nothing to do with the flavor. The higher the altitude, the better the flavor.

The name of the country is immediately followed by the marking of small producing areas. Take Ethiopia-Ethiopia (EthiopiaYirgacheffe) as an example. Ethiopia's Ethiopia is the name of the coffee-producing country, indicating that it is a "single coffee". The Ethiopia is a narrow, long, high-altitude producing area in Ethiopia's Sidamo district. Different small producing areas mean different flavor characteristics. For example, Ethiopia's famous Ethiopia-Haramoka (EthiopiaHarrar) is produced in southern Ethiopia near Somalia. Haramoka has wine-like aromas, blueberry or grape flavors, thick palate, fresh and bright Yega snow coffee, citrus or lemon peel aromas, and a thin palate.

Because the air pressure is low, the air is thin. The atmospheric heat preservation in high altitude areas is poor, resulting in a large amount of heat loss.

(2) at high altitude, there are few clouds, the inverse radiation effect on the ground at night is weak, and the temperature is low.

Because of the high altitude, it absorbs less radiation from the ground during the day, because the temperature decreases with the increase of altitude.

(3) the temperature of the atmosphere mainly comes from the long-wave radiation on the ground. At high altitude, the air is thin, and during the day, the absorption of long-wave radiation on the ground is less and the temperature is low. At night, the heat preservation effect of the atmosphere is poor and the temperature is low. Therefore, the higher the altitude, the lower the temperature, and in the troposphere, for every 100 meters above sea level, the temperature drops by about 0.6 degrees.

To put it popularly:

The temperature change we feel does not come directly from the heat of the sun, but from the air over the earth, which absorbs the heat of the sun and radiates into the air around us, so the air warms up gradually from the bottom up. Therefore, the higher the mountain, the less heat in the atmosphere, the lower the natural temperature; in addition, the higher the mountain, the thinner the air and the less heat is preserved. Therefore, when we climbed the mountain closer to the sun, we felt not too hot, but too cold

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