Guidelines for the classification and purchase of coffee

classification

There are two kinds of coffee with important economic value: Arabian beans and East African beans.

Arabian coffee grows best at high altitude. the flavor of this coffee is much more refined than other coffee, and its caffeine accounts for only 1% of the total weight of coffee.

East African coffee has a mellow taste, strong resistance to diseases and insect pests, and high yield per plant. This kind of coffee grows at low altitude and tastes bitter.

Shopping guide

No matter what kind of coffee, freshness is an important factor affecting the quality. When choosing and buying, grab one or two coffee beans and chew them in your mouth. If there is a clear sound, it means that the coffee beans are not damp, while the coffee beans with fragrant lips and teeth are the top grade, but it is best to pinch them with your hands and feel whether they are solid or not. Never buy empty-shell coffee.

Freshly fried coffee beans are not suitable for drinking right away. generally speaking, the best drinking period for coffee is a week after stir-frying, when the coffee is the freshest and the aroma and taste are the best.

In addition, the purity of coffee beans is another consideration. The expert candidate for coffee is not necessarily to look at the size of the particles, but to grab a handful of individual coffee beans, about dozens of them, to see whether the color of each single bean is the same, and whether the particles are similar in size and shape, so as to avoid buying shoddy products disguised as mixed beans. But if it is a comprehensive bean, different size and color is a normal phenomenon. Heavy heat and medium-deep roasting will cause coffee beans to produce oil, but lightly roasted beans will show that they have gone bad, not only with reduced aroma, but also with astringent and sour taste. In short, when choosing and buying coffee, we should pay attention to its freshness, aroma and stale flavor.