Evaluation of high-quality coffee beans altitude determines the quality of coffee

As the birthplace of tea culture in China, the concept of "good tea comes from high mountains" is deeply rooted in the hearts of the people, so if it is mentioned that "high mountains make good coffee", there should be many people who agree with it. In fact, many low-altitude areas can also produce top-quality coffee. Under the premise of complete air temperature, rainfall, topography and soil, coffee trees especially like the microclimate characteristics of frequent fog and large temperature difference between day and night. If an area has these two microclimate characteristics although the altitude is not high enough, it may also become a producing area of high-quality coffee. It is precisely because of these in high altitude areas (high mountain areas) that the conclusion of "good coffee comes from high mountains" is verified.

There are many reasons for high altitude: first, it is generally foggy in high mountain areas, and sunlight is affected by fog beads, which enhances part of the visible light, thus enhancing the effect of photosynthesis; second, the forest in high mountain areas is lush, which plays a shading role. Coffee trees receive light for a short time and decrease in intensity and diffuse light, which is conducive to the accumulation of nutrients in coffee fruit. Third, the annual average temperature in alpine areas is low, the ripening period of coffee fruit is long, and the accumulation of nutrients is relatively sufficient. Just like one rice a year in Northeast China, it is naturally much better than three-or even four-season rice on Hainan Island. The fourth reason is that the annual average temperature in alpine areas is low, and coffee beans are hard and expansive. The hard texture makes brown beans more suitable for storage, more conducive to quality preservation, and easier to bake with good expansibility. Reason 5, in alpine areas, there is a large temperature difference between day and night, so that coffee trees have sufficient dormancy time and can transform and store nutrients-early to go to bed and get up early is good for the body! Reason 6, the content of amino acids and other aromatics in coffee will increase with the increase of altitude and the decrease of average temperature. Therefore, coffee beans produced in high mountain areas are usually rich in aroma and mellow in taste. ("Coffee Coffee" from this article)