What is the skill of how to tell the good from the bad of coffee?
There are three steps: smell, see, and peel.
◎ smell: hold the coffee beans close to your nose and take a deep breath to see if you can clearly smell the aroma of the coffee beans. If so, the coffee beans are fresh enough. On the contrary, if the aroma is weak, or has begun to appear greasy, it means that the coffee beans are not fresh at all.
No matter how much effort you put into grinding and cooking such coffee beans, it is impossible to make a good cup of coffee.
◎ look: spread the coffee beans on your hands, determine the origin and variety of coffee beans, and determine whether the coffee beans are roasted evenly.
◎ peel: take a coffee bean and try to peel it off with your hands. If the coffee bean is fresh enough, it should be easy to pull away, and it will have a crisp sound and feel. If the coffee beans are not fresh, you will find that you have to work hard to get rid of a bean.
Another important point to observe when peeling off the coffee beans is to see if the firepower is uniform when baking. If it is uniform, the outer skin and inner layer of the beans should be the same color.
If the color of the surface layer is obviously much darker than that of the inner layer, it means that the firepower during baking may be too large, which will also affect the aroma and flavor of coffee beans.

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What's the difference between coffee beans and coffee? how to make good siphon coffee?
Arabica coffee and Robbite coffee are harvested once every three or four years, and their lifespan is also different due to different production conditions and different degrees of care. Both varieties need plenty of sunlight and moisture. Arabian coffee trees prefer a seasonal climate of 15 degrees Celsius and 24 degrees Celsius, while Robbins prefer a warm equatorial climate, where temperatures are stable in the range of 24 degrees Celsius to 29 degrees Celsius.
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What brands of coffee beans are there and which brands taste better?
Colombia (South America), the second largest coffee industry after Brazil, is also a leader in the Columbia-Maird Group (Colombia, Tanzania, Kenya). In addition, there are Asa-Maird, Anwald-Arabica, Robusta). A more famous place of origin
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